TCP SYN (p0f)

4:52+12:0:1440:65535,8:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-22 09:34 · last seen 2026-09-05 08:58 · JSON

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version4
Initial TTL52+12
Options length0
MSS1440
Window size65535
Window scale8
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
t13d4412h1_fd39b124ee10_58ed7828516f8
t13d1515h1_8daaf6152771_de4a06bb82e33

HTTP request (JA4H)

fingerprintco-occurrences
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
ge11nn13enus_9db22d02e17a_000000000000_0000000000003

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1440_811

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/77.0.3865.90 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.80 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_16_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/87.0.4280.60 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_3) AppleWebKit/537.36 (KHTML, like Gecko) Brave Chrome/89.0.4389.114 Safari/537.361

Country

fingerprintco-occurrences
BD · Bangladesh5
UA · Ukraine2
IQ · Iraq2
BR · Brazil1
CI · Côte d’Ivoire1

Network (ASN)

fingerprintco-occurrences
AS14593 · Space Exploration Technologies Corporation1
AS137568 · SKY SYSTEMS LTD1
AS29571 · Orange Côte d'Ivoire1
AS140962 · IDEA TEC LTD1
AS211908 · Horizon Scope Mobile Telecom WLL1
AS152723 · Maijdee Supernet1
AS141763 · Titas Enterprise1
AS41871 · LLC Radiotechichna Laboratoriya1
AS152648 · Spark IT1
AS15377 · TRADITIONAL LLC1