TCP SYN (p0f)

4:48+16:0:1360:65535,6:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-20 20:02 · last seen 2026-09-08 03:05 · JSON

Distinct clients per day (last 30 days, peak 4/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 TTL48+16
Options length0
MSS1360
Window size65535
Window scale6
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_58ed7828516f18
t13d1515h1_8daaf6152771_de4a06bb82e39
t13d1515h1_8daaf6152771_0a20fe35d3a56
t13d1516h1_8daaf6152771_1a63afa7c4783

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.18
ge11nn13enus_9db22d02e17a_000000000000_00000000000014
ge11nn14enus_4a2973d235de_000000000000_0000000000004

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1360_636

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.363
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
BR · Brazil10
NI · Nicaragua6
BD · Bangladesh4
PS · Palestinian Territories4
JO · Jordan3
CR · Costa Rica2
IN · India1
KW · Kuwait1
CO · Colombia1
CL · Chile1

Network (ASN)

fingerprintco-occurrences
AS14754 · TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA8
AS51407 · Mada Al-Arab General Services Company4
AS8697 · Jordan Telecommunications PSC3
AS263110 · Louvetel Comunicação Comercial SCM Ltda2
AS269990 · INTERYA S.A.S1
AS210402 · Hala Al Rafidain Company for Communications and Internet LTD.1
AS3549 · Level 3 Parent, LLC1
AS135092 · Ashraf Uddin t/a Dhaka tech1
AS137491 · PEEREX NETWORKS LTD./IIG1
AS150701 · Regiment Technologies1