Anomalies

Where a client's self-declaration disagrees with what its connection actually proved at the wire. A User-Agent is a claim anyone can set; the TLS, TCP, and HTTP/2 fingerprints below are measured from the bytes. Disagreement is the classic signal of automation dressed as a browser — though VPNs, proxies, privacy tools, and shared fingerprints produce honest mismatches too, so these are leads, not verdicts. Each check scans every co-observed pairing on record (showing one check, capped at 500 rows).

Browser claim vs. measured captures

A User-Agent claiming a browser the catalog has measured, at a version inside the measured range, whose TLS fingerprint is consistent with none of this site's controlled captures of that browser. Where the check above leans on an external label, this one is grounded in measurement. The comparison is layered: a fingerprint differing from a capture only in handshake-variant extensions (session resumption, 0-RTT, session tickets, padding) counts as consistent and is not shown; a differing cipher list is the stronger lead (medium); matching ciphers with a differing extension or signature-algorithm set is weaker (low) — most often a field-trial, ECH, or build variant not yet captured. It sharpens as catalog coverage broadens.

fingerprintUser-Agentclaimswire showsconfidenceseenfirst seenlast seen
t13d151000_8daaf6152771_18e8a06d9b2d Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 153.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
Claimed version153.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 39 2026-08-28 2026-09-16
t13d2013h1_2b729b4bf6f3_e24568c0d440 Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome… User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/152.0.0.0
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 22 2026-09-14 2026-09-14
t13d1518h2_8daaf6152771_4980c97edce0 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 152.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 18 2026-07-22 2026-09-16
t13d1812h1_85036bcba153_b26ce05bbdd6 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 17 2026-09-13 2026-09-14
t13d131000_f57a46bbacb6_e7c285222651 Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/… User-Agent claims Firefox 135.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0
Claimed version135.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 14 2026-07-25 2026-09-10
t13d1614h2_86a278354501_3dd24b5ebec4 Mozilla/5.0 (Android 10; Mobile; rv:153.0) Gecko… User-Agent claims Firefox 153.0
TLS extensions or signature algorithms differ from every measured Firefox capture

The cipher suites match Firefox, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Android 10; Mobile; rv:153.0) Gecko/153.0 Firefox/153.0
Claimed version153.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 7 2026-09-16 2026-09-16
t13d2012h1_2b729b4bf6f3_9e7b989ebec8 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 7 2026-09-13 2026-09-13
t13d1518h2_8daaf6152771_4980c97edce0 Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.… User-Agent claims Chrome 153.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
Claimed version153.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 7 2026-09-16 2026-09-16
t13d301300_1d37bd780c83_5ae85263eb3b Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/… User-Agent claims Firefox 142.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0
Claimed version142.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 7 2026-07-22 2026-09-13
t13d3112h2_e8f1e7e78f70_b26ce05bbdd6 Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome… User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/152.0.0.0
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 5 2026-09-13 2026-09-14
t13d1911h2_9dc949149365_e7c285222651 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv… User-Agent claims Firefox 155.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:155.0) Gecko/20100101 Firefox/155.0
Claimed version155.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 5 2026-09-13 2026-09-13
t13d1516h3_8daaf6152771_d8a2da3f94cd Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv… User-Agent claims Firefox 155.0
TLS extensions or signature algorithms differ from every measured Firefox capture

The cipher suites match Firefox, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:155.0) Gecko/20100101 Firefox/155.0
Claimed version155.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 4 2026-09-16 2026-09-16
t13d251100_f5a23f7cfd7b_36bf25f296df Mozilla/5.0 (Windows NT 10.0; Microsoft Windows … User-Agent claims PowerShell 7.6.5
TLS cipher list matches no measured PowerShell capture

The offered TLS cipher suites match no controlled capture of PowerShell. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Microsoft Windows 10.0.26200; ru-RU) PowerShell/7.6.5
Claimed version7.6.5
Measured versions7.6.4, 7.6.3, 7.6.5, 5.1.26100.33296, 5.1.26100.32995, 5.1.26100.33158
Layercipher suites differ
JA4 labelunlabeled
medium 4 2026-09-16 2026-09-16
t13d2013h1_2b729b4bf6f3_e24568c0d440 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 4 2026-09-09 2026-09-13
t13d2013h2_a09f3c656075_7f0f34a4126d Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/5… User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Mobile Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 4 2026-09-16 2026-09-16
t13d1518h2_8daaf6152771_4980c97edce0 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) … User-Agent claims Chrome 153.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
Claimed version153.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 3 2026-09-16 2026-09-16
t13d260900_6d1bcf7a4624_188c7f576dcd Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 3 2026-09-10 2026-09-10
t13d6912h2_8b2139ff7677_4de21b5f1c9e Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) … User-Agent claims Chrome 152.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 2 2026-09-10 2026-09-10
t13d1515h1_8daaf6152771_0a20fe35d3a5 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) … User-Agent claims Chrome 152.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-09-10 2026-09-10
q13d0311h3_55b375c5d22e_5a1f323ef56d Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 153.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
Claimed version153.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-09-15 2026-09-15
t13d260900_6d1bcf7a4624_188c7f576dcd Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 153.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
Claimed version153.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 2 2026-09-10 2026-09-15
t13d1516h3_8daaf6152771_d8a2da3f94cd Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143… User-Agent claims Firefox 143.0
TLS extensions or signature algorithms differ from every measured Firefox capture

The cipher suites match Firefox, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0
Claimed version143.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-06-22 2026-09-12
q13d0315h3_55b375c5d22e_78345df32b3a Mozilla/5.0 (X11; Linux x86_64; rv:155.0) Gecko/… User-Agent claims Firefox 155.0
TLS extensions or signature algorithms differ from every measured Firefox capture

The cipher suites match Firefox, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (X11; Linux x86_64; rv:155.0) Gecko/20100101 Firefox/155.0
Claimed version155.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-09-16 2026-09-16
t13d131300_f57a46bbacb6_1bd98dace775 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 151.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36
Claimed version151.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 2 2026-09-14 2026-09-14
t13d260900_6d1bcf7a4624_188c7f576dcd Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Edge 152.0.0.0
TLS cipher list matches no measured Edge capture

The offered TLS cipher suites match no controlled capture of Edge. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36 Edg/152.0.0.0
Claimed version152.0.0.0
Measured versions152.0.4191.66, 151.0.4129.72, 149.0.4022.98, 151.0.4129.101, 150.0.4078.65, 149.0.4022.69, 149.0.4022.52, 150.0.4078.99, 149.0.4022.80, 151.0.4129.93, 151.0.4129.59
Layercipher suites differ
JA4 labelunlabeled
medium 2 2026-08-31 2026-09-10
t13d2014h2_a09f3c656075_14788d8d241b Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) … User-Agent claims Safari 26.5
TLS extensions or signature algorithms differ from every measured Safari capture

The cipher suites match Safari, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5 Safari/605.1.15
Claimed version26.5
Measured versions26.5, 26.5.2, 26.6.1, 26.4, 26.6.2
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-09-11 2026-09-11
q13d0313h3_55b375c5d22e_eb028bd37c08 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 152.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36
Claimed version152.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-09-16 2026-09-16
t13d1713h2_5b57614c22b0_f81080dfc557 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv… User-Agent claims Firefox 155.0
TLS extensions or signature algorithms differ from every measured Firefox capture

The cipher suites match Firefox, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:155.0) Gecko/20100101 Firefox/155.0
Claimed version155.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-09-16 2026-09-16
q13d0311h3_55b375c5d22e_f2a83c8e78ae Mozilla/5.0 (iPhone; CPU iPhone OS 26_6_1 like M… User-Agent claims Chrome 152.0.7977.64
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (iPhone; CPU iPhone OS 26_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/152.0.7977.64 Mobile/15E148 Safari/604.1
Claimed version152.0.7977.64
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 2 2026-09-11 2026-09-11
t13d1518h2_8daaf6152771_4980c97edce0 Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW… User-Agent claims Chrome 153.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
Claimed version153.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 1 2026-09-12 2026-09-12
t13d2013h2_a09f3c656075_7f0f34a4126d Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155… User-Agent claims Firefox 155.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0
Claimed version155.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-16 2026-09-16
t13d131200_f57a46bbacb6_9249cab70c77 Mozilla/5.0 (Linux; Android 15; SM-S918B) AppleW… User-Agent claims Chrome 148.0.1265.105
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Linux; Android 15; SM-S918B) AppleWebKit/537.36 (KHTML, like Gecko; compatible; TelegramBot/1.0) Chrome/148.0.1265.105 Mobile Safari/537.36
Claimed version148.0.1265.105
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-15 2026-09-15
t13d131200_f57a46bbacb6_9249cab70c77 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132… User-Agent claims Firefox 132.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0
Claimed version132.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-12 2026-09-12
t13d251100_b78ed14e2fd0_ab7e3b40a677 Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac… User-Agent claims Safari 26.5.2
TLS cipher list matches no measured Safari capture

The offered TLS cipher suites match no controlled capture of Safari. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.5.2 Mobile/15E148 Safari/604.1
Claimed version26.5.2
Measured versions26.5, 26.5.2, 26.6.1, 26.4, 26.6.2
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-10 2026-09-10
t13d251100_b78ed14e2fd0_ab7e3b40a677 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv… User-Agent claims Firefox 139.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0
Claimed version139.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-14 2026-09-14
t13d1713h1_ab0a1bf427ad_ecd0401ec68b Mozilla/5.0 (X11; Linux x86_64; rv:154.0) Gecko/… User-Agent claims Firefox 154.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (X11; Linux x86_64; rv:154.0) Gecko/20100101 Firefox/154.0
Claimed version154.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-11 2026-09-11
t13d131200_f57a46bbacb6_9249cab70c77 Mozilla/5.0 (Windows NT 10.0; rv:143.0) Gecko/20… User-Agent claims Firefox 143.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; rv:143.0) Gecko/20100101 Firefox/143.0; compatible; WhatsApp/10.0.2.1
Claimed version143.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-11 2026-09-11
t13d131200_f57a46bbacb6_9249cab70c77 Mozilla/5.0 (Macintosh; Intel Mac OS X 14_5) App… User-Agent claims Edge 151.0.1247.107
TLS cipher list matches no measured Edge capture

The offered TLS cipher suites match no controlled capture of Edge. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 14_5) AppleWebKit/537.36 (KHTML, like Gecko; compatible; WhatsApp/10.0.2.1) Chrome/151.0.1247.107 Safari/537.36 Edg/151.0.1247.107
Claimed version151.0.1247.107
Measured versions152.0.4191.66, 151.0.4129.72, 149.0.4022.98, 151.0.4129.101, 150.0.4078.65, 149.0.4022.69, 149.0.4022.52, 150.0.4078.99, 149.0.4022.80, 151.0.4129.93, 151.0.4129.59
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-12 2026-09-12
q13d0311h3_55b375c5d22e_f2a83c8e78ae Mozilla/5.0 (iPhone; CPU iPhone OS 26_6_1 like M… User-Agent claims Chrome 153.0.8010.24
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (iPhone; CPU iPhone OS 26_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/153.0.8010.24 Mobile/15E148 Safari/604.1
Claimed version153.0.8010.24
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 1 2026-09-12 2026-09-12
t13d131200_f57a46bbacb6_9249cab70c77 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv… User-Agent claims Firefox 132.17
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.17) Gecko/20100101 Firefox/132.17; compatible; ClaudeBot/1.0; +claudebot@anthropic.com
Claimed version132.17
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-12 2026-09-12
t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 Mozilla/5.0 (Linux; Android 15; Pixel 8) AppleWe… User-Agent claims Chrome 148.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Linux; Android 15; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Mobile Safari/537.36
Claimed version148.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-12 2026-09-12
t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleW… User-Agent claims Edge 152.0.0.0
TLS cipher list matches no measured Edge capture

The offered TLS cipher suites match no controlled capture of Edge. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36 Edg/152.0.0.0
Claimed version152.0.0.0
Measured versions152.0.4191.66, 151.0.4129.72, 149.0.4022.98, 151.0.4129.101, 150.0.4078.65, 149.0.4022.69, 149.0.4022.52, 150.0.4078.99, 149.0.4022.80, 151.0.4129.93, 151.0.4129.59
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-12 2026-09-12
t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 Mozilla/5.0 (Linux; Android 15; SM-A546B) AppleW… User-Agent claims Chrome 150.0.0.0
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Linux; Android 15; SM-A546B) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36
Claimed version150.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-12 2026-09-12
t13d131300_f57a46bbacb6_1bd98dace775 Mozilla/5.0 (Linux; Android 13; Pixel 7) AppleWe… User-Agent claims Chrome 151.0.5966.104
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Linux; Android 13; Pixel 7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.5966.104 Mobile Safari/537.36; compatible; Claude-User/1.0; +Claude-User@anthropic.com
Claimed version151.0.5966.104
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-14 2026-09-14
t13d131300_f57a46bbacb6_1bd98dace775 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.5; rv:… User-Agent claims Firefox 132.13
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 14.5; rv:132.13) Gecko/20100101 Firefox/132.13; compatible; Twitterbot/1.0
Claimed version132.13
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-14 2026-09-14
t13d2014h2_a09f3c656075_e42f34c56612 Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac… User-Agent claims Firefox 155.1
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/155.1 Mobile/15E148 Safari/604.1
Claimed version155.1
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-14 2026-09-14
q13d0313h3_55b375c5d22e_eb028bd37c08 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) … User-Agent claims Chrome 153.0.0.0
TLS extensions or signature algorithms differ from every measured Chrome capture

The cipher suites match Chrome, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36
Claimed version153.0.0.0
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 1 2026-09-16 2026-09-16
t13d251100_b78ed14e2fd0_ab7e3b40a677 Mozilla/5.0 (Windows NT 10.0; rv:139.0) Gecko/20… User-Agent claims Firefox 139.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Windows NT 10.0; rv:139.0) Gecko/20100101 Firefox/139.0
Claimed version139.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-14 2026-09-14
t13d131200_f57a46bbacb6_9249cab70c77 Mozilla/5.0 (Linux; Android 12; Pixel 6) AppleWe… User-Agent claims Chrome 151.0.1355.231
TLS cipher list matches no measured Chrome capture

The offered TLS cipher suites match no controlled capture of Chrome. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Linux; Android 12; Pixel 6) AppleWebKit/537.36 (KHTML, like Gecko; compatible; Claude-User/1.0; +Claude-User@anthropic.com) Chrome/151.0.1355.231 Mobile Safari/537.36
Claimed version151.0.1355.231
Measured versions151.0.7922.174, 149.0.7827.103, 149.0.7827.53, 149.0.7827.115, 149.0.7827.114, 153.0.8010.47, 149.0.7827.54, 149.0.7827.201, 150.0.7871.187, 153.0.8010.36, 151.0.7922.170, 152.0.7977.83, 152.0.7977.82, 152.0.7977.65, 150.0.7871.114, 150.0.7871.115, 150.0.7871.129, 151.0.7922.72, 151.0.7922.137, 152.0.7977.75, 151.0.7922.173, 149.0.7827.102, 149.0.7827.156, 151.0.7922.71, 150.0.7871.128, 151.0.7922.108, 149.0.7827.155, 150.0.7871.125, 150.0.7871.46, 151.0.7922.109, 152.0.7977.64, 148.0.7778.179, 149.0.7827.200
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-15 2026-09-15
t13d1517h2_8daaf6152771_3e9721a6796e Mozilla/5.0 (X11; Linux x86_64; rv:155.0) Gecko/… User-Agent claims Firefox 155.0
TLS extensions or signature algorithms differ from every measured Firefox capture

The cipher suites match Firefox, but the extension set or signature algorithms differ from every capture even after normalizing handshake-variant extensions. Most likely a field-trial, ECH, or build variant the catalog has not captured; occasionally mimicry. This sharpens as catalog coverage grows.

Full User-AgentMozilla/5.0 (X11; Linux x86_64; rv:155.0) Gecko/20100101 Firefox/155.0
Claimed version155.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites match; extension set or signature algorithms differ
JA4 labelunlabeled
low 1 2026-09-16 2026-09-16
t13d1812h1_85036bcba153_b26ce05bbdd6 Mozilla/5.0 (Android 14; Mobile; rv:140.0.1) Gec… User-Agent claims Firefox 140.0.1
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Android 14; Mobile; rv:140.0.1) Gecko/140.0.1 Firefox/140.0.1
Claimed version140.0.1
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-16 2026-09-16
t13d251100_b78ed14e2fd0_ab7e3b40a677 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv… User-Agent claims Firefox 132.0
TLS cipher list matches no measured Firefox capture

The offered TLS cipher suites match no controlled capture of Firefox. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.0) Gecko/20100101 Firefox/132.0
Claimed version132.0
Measured versions146.0.1, 152.0.1, 154.0, 140.0.2, 151.0.4, 151.0.2, 139.0, 153.0.1, 155.0, 152.0.5, 153.0.3, 142.0.1, 153.0.4, 152.0.6, 150.0.2, 135.0, 132.0, 152.0.3, 148.0.2, 137.0, 141.0, 155.0.1, 153.0, 151.0.3, 144.0.2, 154.0.1, 134.0, 152.0.4, 151.0
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-15 2026-09-15
t13d131100_f57a46bbacb6_ab7e3b40a677 Mozilla/5.0 (Macintosh; Intel Mac OS X 26_1) App… User-Agent claims Safari 26.1
TLS cipher list matches no measured Safari capture

The offered TLS cipher suites match no controlled capture of Safari. Cipher lists are very stable per browser, so a different one is a real inconsistency — though a TLS-inspecting proxy re-originating the handshake is an honest cause, which holds this at medium.

Full User-AgentMozilla/5.0 (Macintosh; Intel Mac OS X 26_1) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.1 Safari/605.1.15
Claimed version26.1
Measured versions26.5, 26.5.2, 26.6.1, 26.4, 26.6.2
Layercipher suites differ
JA4 labelunlabeled
medium 1 2026-09-15 2026-09-15

How confidence is assigned