TCP SYN (p0f)

6:49+15:0:8440:mss*7,7:mss,nop,nop,sok,nop,ws:flow:0

first seen 2026-07-09 01:30 · last seen 2026-08-23 01:53 · JSON

Decomposed attributes

IP version6
Initial TTL49+15
Options length0
MSS8440
Window sizemss*7
Window scale7
Options layoutmss,nop,nop,sok,nop,ws
Quirksflow
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
t13d2512h2_b78ed14e2fd0_ab7e3b40a6772
t13d3113h1_e8f1e7e78f70_d339722ba4af1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr020000_fb4f949fd323_000000000000_0000000000002
ge11nn030000_7dedce931117_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
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.2

TCP SYN (JA4T)

fingerprintco-occurrences
59080_2-1-1-4-1-3_8440_73

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.361

Country

fingerprintco-occurrences
CA · Canada3

Network (ASN)

fingerprintco-occurrences
AS63949 · Akamai Connected Cloud3