TLS supported groups

0018,0017

first seen 2026-10-14 13:30 · last seen 2026-10-30 23:53 · JSON

Last 7 days (39 observations)

Distinct clients per day (last 30 days, peak 9/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

Groups in wire order0018 (secp384r1), 0017 (secp256r1)
Group count2
GREASE count0

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)

fingerprintco-occurrences
t13d2013h2_2b729b4bf6f3_e24568c0d440 Match?Exact match in Thumbprint's published controlled catalog captures: winhttp 10.0.20348.1.The fingerprint page shows the full measured match list. More on the catalog.47
t13d2212h2_231e334592e8_36bf25f296df Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog.25
t13d1013h2_01be160bb49b_e24568c0d4407
t12d080700_0df93f53a2f9_2dae41c691ec4
t13d101100_01be160bb49b_36bf25f296df Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.5, powershell 5.1.26100.33296, +8 more.The fingerprint page shows the full measured match list. More on the catalog.2
t12d180700_4b22cbed5bed_f28add8e7af01

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn060000_0c07ec02b430_000000000000_00000000000054
ge20nn040000_9d24d42de290_000000000000_0000000000004
ge20nn040000_421e6bfdbec2_000000000000_0000000000003
ge20nn040000_bdf2d84aab57_000000000000_0000000000003
ge20nn040000_dc4a0ccf6385_000000000000_0000000000002
ge11nn030000_a62a46bb46ce_000000000000_0000000000002
he11nn030000_b0d6a43aa599_000000000000_0000000000001
ge20nn040000_4fc62b8ba0b7_000000000000_0000000000001
ge20nn040000_31537f9be9e0_000000000000_0000000000001
ge11nn030000_b0d6a43aa599_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 5.1.26100.33296, powershell 5.1.26100.33158, powershell 5.1.26100.33438, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:10485760|10420225|0|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: winhttp 10.0.20348.1.The fingerprint page shows the full measured match list. More on the catalog.54
2:0;4:65535|67043329|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog.25

TCP SYN (p0f)

fingerprintco-occurrences
4:114+14:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:020
4:114+14:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:018
4:112+16:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:012
4:110+18:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:06
4:111+17:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:05
4:113+15:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:05
4:109+19:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:05
4:108+20:0:1440:mss*44,0:mss,nop,nop,sok:df,id+,ecn:03
4:109+19:0:1440:65535,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:02
4:111+17:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:02

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-1-4_1440_0054
64240_2-1-3-1-1-4_1440_826
65535_2-1-3-1-1-4_1440_84
64860_2-1-3-1-1-4_1340_81
64800_2-1-3-1-1-4_1440_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) Chrome/116.0.1938.76 Safari/537.3679
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.364
Mozilla/5.0 (Windows NT 6.1; WOW64) SkypeUriPreview Preview/0.5 skype-url-preview@microsoft.com1
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.74 Safari/537.36 Edg/79.0.309.431

Country

fingerprintco-occurrences
US · United States82
IN · India4

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation85
AS8070 · Microsoft Corporation1