TCP SYN (p0f)

4:46+18:0:1460:mss*29,10:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-19 12:25 · last seen 2026-09-07 03:03 · JSON

Decomposed attributes

IP version4
Initial TTL46+18
Options length0
MSS1460
Window sizemss*29
Window scale10
Options layoutmss,sok,ts,nop,ws
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
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.28
t12d610700_8a10cb45a794_4446390ac22410
t13d1313h2_f57a46bbacb6_9249cab70c773
t13i1909h2_9dc949149365_97f8aa674fd91

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn10zh00_06e2da52e592_000000000000_00000000000017
ge11nn040000_4f6f4aad0c1e_000000000000_00000000000010
ge20nn10zh00_e1b5b4fef504_000000000000_0000000000007
ge20nn020000_fb4f949fd323_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.9, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog.3
ge20nn10zh00_f058b30e64ca_000000000000_0000000000003
ge20nr040000_be74ea4f9dce_000000000000_0000000000001
ge20nn10zh00_dfc386b48ce4_000000000000_0000000000001

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, +60 more.The fingerprint page shows the full measured match list. More on the catalog.28
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p3
2:0;4:4194304;5:16384;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.10, go-net/http 1.26.9, +8 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1460_1041

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Linux; Android 5.0) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; Bytespider; https://zhanzhang.toutiao.com/)38
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Bytespider;https://zhanzhang.toutiao.com/3
Mozilla/5.0 (compatible; CyberConvoyScout/1.0; +https://scout.cyberconvoy.co)1

Country

fingerprintco-occurrences
CN · China41
GB · United Kingdom1

Network (ASN)

fingerprintco-occurrences
AS4837 · CHINA UNICOM China169 Backbone32
AS4134 · CHINANET BACKBONE9
AS20473 · The Constant Company, LLC1