TCP SYN (p0f)

4:41+23:0:1360:65535,6:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-21 10:59 · last seen 2026-09-11 15:21 · JSON

Last 7 days (2 observations)

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 TTL41+23
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_0a20fe35d3a57
t13d1515h1_8daaf6152771_de4a06bb82e34

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_0000000000008
ge11nn14enus_4a2973d235de_000000000000_0000000000003

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1360_629

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/110.0.0.0 Safari/537.362
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/119.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.361
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1839 Safari/537.361
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.361
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.361

Country

fingerprintco-occurrences
BR · Brazil12
LB · Lebanon5
UZ · Uzbekistan3
OM · Oman3
IR · Iran2
UA · Ukraine1
IL · Israel1
KW · Kuwait1
CG · Congo - Brazzaville1

Network (ASN)

fingerprintco-occurrences
AS39010 · TerraNet sal4
AS28885 · OmanTel NAP3
AS41202 · UNITEL LLC2
AS8167 · V tal1
AS12849 · Hot-Net internet services Ltd.1
AS26599 · TELEFÔNICA BRASIL S.A1
AS201767 · Uzbektelekom Joint Stock Company1
AS15895 · Kyivstar PJSC1
AS271101 · CORREA E RODRIGUES TELECOM LTDA1
AS263592 · FRANCISCO MARQUES VIEIRA GONCALVES ME1