TCP SYN (JA4T)

24704_2-4-8-1-3_1240_7

first seen 2026-07-01 14:38 · last seen 2026-08-19 15:39 · JSON

Decomposed attributes

TCP window24704
Option kinds2-4-8-1-3
MSS1240
Window scale7

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
t13d1713h1_ab0a1bf427ad_ecd0401ec68b Match?Exact match in Thumbprint's published controlled catalog captures: python-httpx 0.28.1.The fingerprint page shows the full measured match list. More on the catalog.9
t13d4312h1_c7886603b240_b26ce05bbdd68
t13d591000_a33745022dd6_5ac7197df9d23

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_be0d0b335e46_000000000000_0000000000009
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.8
ge11nn030000_64d88a276dc3_000000000000_0000000000002
ge11nn020000_2584704e3218_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:57+7:0:1240:24704,7:mss,sok,ts,nop,ws:df:09
4:42+22:0:1240:24704,7:mss,sok,ts,nop,ws:df:07
4:43+21:0:1240:24704,7:mss,sok,ts,nop,ws:df:03
4:46+18:0:1240:24704,7:mss,sok,ts,nop,ws:df:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Claude-User/1.0; +claude-user@anthropic.com)9
python-requests/2.32.44
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.74 Safari/537.364
Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Ubuntu/10.04 Chromium/6.0.472.53 Chrome/6.0.472.53 Safari/534.32

Country

fingerprintco-occurrences
US · United States19
BE · Belgium1

Network (ASN)

fingerprintco-occurrences
AS396982 · Google LLC20