TCP SYN (p0f)

4:117+11:0:1300:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-07-22 18:38 · last seen 2026-07-22 23:53 · JSON

Decomposed attributes

IP version4
Initial TTL117+11
Options length0
MSS1300
Window sizemss*44
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
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
t13d0516h2_e133e205ac38_d8a2da3f94cd3
t13d0516h2_e133e205ac38_02713d6af8622
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.2
t13d0416h2_39e807bd56df_d8a2da3f94cd1
t13d0514h2_e133e205ac38_2d677a1cc7a21

HTTP request (JA4H)

fingerprintco-occurrences
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, +23 more.The fingerprint page shows the full measured match list. More on the catalog.9

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, +43 more.The fingerprint page shows the full measured match list. More on the catalog.9

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1300_89

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.369

Country

fingerprintco-occurrences
US · United States9

Network (ASN)

fingerprintco-occurrences
AS40222 · Credit One Bank9