TCP SYN (p0f)

6:44+20:0:1440:mss*45,8:mss,sok,ts,nop,ws:flow:0

first seen 2026-07-24 03:35 · last seen 2026-09-21 01:32 · JSON

Decomposed attributes

IP version6
Initial TTL44+20
Options length0
MSS1440
Window sizemss*45
Window scale8
Options layoutmss,sok,ts,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
t13d1312h2_f57a46bbacb6_ab7e3b40a677 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, +7 more.The fingerprint page shows the full measured match list. More on the catalog.2
t13d3014h1_1d37bd780c83_c5cfab342c591

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_e1d2031bdfea_000000000000_0000000000001
ge20nn07enus_3c929cdc62ca_000000000000_0000000000001
ge20nn07enus_44a4ddcc79ff_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
64800_2-4-8-1-3_1440_83

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; WebatlaBot/1.0; +https://bot.webatla.com; abuse@webatla.com)1
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124 Safari/537.361
Mozilla/5.0 (compatible; webatlabot/1.0; +https://webatla.com/bot; abuse@webatla.com)1

Country

fingerprintco-occurrences
DE · Germany2
CA · Canada1

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH2
AS16276 · OVH SAS1