TCP SYN (p0f)

4:109+19:0:1460:65535,8:mss,nop,ws,sok,ts:df,id+:0

first seen 2026-10-10 20:22 · last seen 2026-10-19 04:16 · 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

IP version4
Initial TTL109+19
Options length0
MSS1460
Window size65535
Window scale8
Options layoutmss,nop,ws,sok,ts
Quirksdf,id+
Payload class0

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
t13d1517h2_8daaf6152771_cb7bf5808d99 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 152.0.7977.83, chrome 154.0.8037.57, chrome 152.0.7977.64, +24 more.The fingerprint page shows the full measured match list. More on the catalog.69
t13d1517h2_8daaf6152771_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 155.0.1, firefox 154.0, firefox 156.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.2

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn15ruru_74941313fa48_000000000000_00000000000031
ge20nn16ruru_aedc7d5591f1_000000000000_00000000000029
ge20nn14ruru_3fb598f484fb_000000000000_0000000000009
ge20nn10ruru_d353d425b0bb_000000000000_0000000000002

HTTP/2 frames (Akamai)

fingerprintco-occurrences
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.7
1:65536;2:0;4:6291456;6:262144|15663105|7:1:0:256|m,a,s,p3
1:65536;2:0;4:6291456;6:262144|15663105|59:1:0:256|m,a,s,p3
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.2
1:65536;2:0;4:6291456;6:262144|15663105|3:1:0:256|m,a,s,p2
1:65536;2:0;4:6291456;6:262144|15663105|9:1:0:256|m,a,s,p2
1:65536;2:0;4:6291456;6:262144|15663105|11:1:0:256|m,a,s,p2
1:65536;2:0;4:6291456;6:262144|15663105|13:1:0:256|m,a,s,p2
1:65536;2:0;4:6291456;6:262144|15663105|15:1:0:256|m,a,s,p2
1:65536;2:0;4:6291456;6:262144|15663105|29:1:0:256|m,a,s,p2

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-4-8_1460_871

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.3669
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:157.0) Gecko/20100101 Firefox/157.02

Country

fingerprintco-occurrences
RU · Russia71

Network (ASN)

fingerprintco-occurrences
AS35807 · SkyNet Ltd.71

TLS supported groups

fingerprintco-occurrences
0a0a,11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 155.0.8059.40, chrome 156.0.8078.73, chromium 156.0.8078.47, +8 more.The fingerprint page shows the full measured match list. More on the catalog.31
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 157.0.1, firefox-esr 153.5.1esr, firefox 158.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1