User-Agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.7339.0 Safari/537.36
first seen 2026-06-29 23:30 · last seen 2026-10-13 14:28 · JSON
Distinct clients per day (last 30 days, peak 1/day)
Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.
Decomposed attributes
| Browser / client | Chrome 140.0.7339.0 |
|---|---|
| Operating system | Windows 6.1 |
| Device class | desktop |
| Note | inferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above |
Co-observed signals
Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.
TLS ClientHello (JA4)
| fingerprint | co-occurrences |
|---|---|
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog. | 5 |
q13d0311h3_55b375c5d22e_653d80c3fe9d Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 149.0.7827.102, +56 more.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.187, chromium 149.0.7827.102, chrome 152.0.7977.83, +81 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
1:65536;2:0;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 151.0.7922.34, chrome 151.0.7922.137, +57 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|5:1:0:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chromium 133.0.6943.16, chrome 156.0.8078.48, chrome 150.0.7871.128, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:6291456;6:262144|15663105|3:1:1:220|m,a,s,p Match?Exact match in Thumbprint's published controlled catalog captures: chrome 150.0.7871.128, chrome 150.0.7871.115, chrome 154.0.8037.58, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:112+16:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:0 | 3 |
4:102+26:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:0 | 2 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-1-3-1-1-4_1440_8 | 5 |
QUIC transport params
| fingerprint | co-occurrences |
|---|---|
q12_fcf871be5fee Match?Exact match in Thumbprint's published controlled catalog captures: chromium 145.0.7632.6, chromium 143.0.7499.4, chromium 141.0.7390.37, +5 more.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 8 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS8075 · Microsoft Corporation | 5 |
AS8070 · Microsoft Corporation | 3 |
Cross-transport links
TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).
| fingerprint | linked observations |
|---|---|
q13d0311h3_55b375c5d22e_653d80c3fe9d | 4 |
t13d1516h2_8daaf6152771_d8a2da3f94cd | 4 |