TCP SYN (p0f)

4:114+14:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-06-26 02:01 · last seen 2026-07-03 02:39 · JSON

Decomposed attributes

IP version4
Initial TTL114+14
Options length0
MSS1460
Window size8192
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
t13d3112h1_e8f1e7e78f70_8d633dac71242
t13d4312h1_c7886603b240_24695f2957a71

HTTP request (JA4H)

fingerprintco-occurrences
ge20cn06enus_044c956d21f3_4cb3a207adae_400ba86c163b1
ge11nn14enus_45478640c1af_000000000000_0000000000001
ge11nn08engb_c5a0c9618bb0_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:4096;2:0;4:65535;5:16384;3:100;6:65536|16777216|0|m,a,s,p 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.1

TCP SYN (JA4T)

fingerprintco-occurrences
8192_2-1-3-1-1-4_1460_82

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.85 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) Gecko/20100101 Firefox/118.0.21

Country

fingerprintco-occurrences
SG · Singapore3

Network (ASN)

fingerprintco-occurrences
AS14061 · DigitalOcean, LLC3