TCP SYN (p0f)
6:55+9:0:1440:65535,6:mss,sok,ts,nop,ws:flow:0
first seen 2026-09-04 02:27 · last seen 2026-10-31 18:57 · JSON
Last 7 days (10 observations)
Distinct clients per day (last 30 days, peak 4/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 version | 6 |
|---|---|
| Initial TTL | 55+9 |
| Options length | 0 |
| MSS | 1440 |
| Window size | 65535 |
| Window scale | 6 |
| Options layout | mss,sok,ts,nop,ws |
| Quirks | flow |
| Payload class | 0 |
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 |
|---|---|
t13d4312h1_c7886603b240_b26ce05bbdd6 | 17 |
t13d1516h2_8daaf6152771_02713d6af862 Match?Exact match in Thumbprint's published controlled catalog captures: chromium 131.0.6778.33, chromium 134.0.6998.35, chromium 133.0.6943.16.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
t13d1517h2_8daaf6152771_b1ff8ab2d16f | 1 |
t13d1515h1_8daaf6152771_0a20fe35d3a5 | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge11nn050000_b223a0ebb0b5_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog. | 17 |
ge20nn13enus_0c2c1d640f3e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 151.0.7922.137, chrome 151.0.7922.170, chrome 151.0.7922.108, +39 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
ge11nn13enus_9db22d02e17a_000000000000_000000000000 | 1 |
ge20nr13enus_e2ac93ffb364_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-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, +60 more.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
65535_2-4-8-1-3_1440_6 | 21 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
FR · France | 7 |
CO · Colombia | 7 |
CA · Canada | 4 |
US · United States | 1 |
IL · Israel | 1 |
GP · Guadeloupe | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS3215 · Orange S.A. | 8 |
AS10620 · Telmex Colombia S.A. | 6 |
AS5769 · Videotron Ltee | 3 |
AS14593 · Space Exploration Technologies Corporation | 1 |
AS6327 · Shaw Communications | 1 |
AS6810 · "Bezeq"- THE ISRAEL TELECOMMUNICATION CORP. LTD. | 1 |
AS14080 · Telmex Colombia S.A. | 1 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
001d,0017,001e,0019,0018,0100,0101,0102,0103,0104 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, php-guzzle 8.3.1, curl 7.88.1, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 15 |
0a0a,6399,001d,0017,0018 | 2 |
0a0a,001d,0017,0018 | 1 |