TCP SYN (p0f)

4:50+14:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-11 05:05 · last seen 2026-08-03 05:11 · JSON

Decomposed attributes

IP version4
Initial TTL50+14
Options length0
MSS1460
Window sizemss*29
Window scale9
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
t13d191000_9dc949149365_e7c28522265150
t13d3515h1_8f004308c246_5c2c66f702b047
t13i191000_9dc949149365_e5728521abd44
t13d351400_8f004308c246_5c2c66f702b03
t13i3514h1_8f004308c246_5c2c66f702b03
t13i351400_8f004308c246_d8a2da3f94cd1
t13d3013h2_1d37bd780c83_8537cf56674e1
t13d3112h1_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: php-guzzle 8.1.0, php-guzzle 8.0.2, php-guzzle 7.14.2, +6 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_88d30a62b7ad_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.25.0.The fingerprint page shows the full measured match list. More on the catalog.29
ge11nn05zh00_4ee89fec50ea_000000000000_00000000000029
po11nn070000_ce951b014b9b_000000000000_00000000000024
ge11nn05zh00_ddc401472a00_000000000000_0000000000009
pr11nr020000_3ed38b250d3d_000000000000_0000000000004
ge11nn06zh00_d81147f3cea4_000000000000_0000000000004
ge11nn06zh00_e9dea1aac148_000000000000_0000000000003
ge11nn07zh00_d7d6dffb19f3_000000000000_0000000000002
po11nn060000_f6346d9708e1_000000000000_0000000000001
ge11nn07zh00_00a445bc1213_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1460_952

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; Infrawatch/1.0; +https://infrawat.ch/)53
Mozilla/5.0 (Linux; Android 11; vivo 1906; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.141 Mobile Safari/537.36 VivoBrowser/8.9.0.025
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.3611
curl/7.4.08
okhttp/3.14.95
-4
Go-http-client/1.11
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.361
FreshRSS/1.28.1 (Linux; https://freshrss.org)1
Dart/3.51

Country

fingerprintco-occurrences
DE · Germany54
CN · China50
NL · Netherlands4
US · United States1
KR · South Korea1

Network (ASN)

fingerprintco-occurrences
AS25369 · Hydra Communications Ltd54
AS4134 · CHINANET BACKBONE50
AS211443 · SINO WORLDWIDE TRADING LIMITED4
AS14061 · DigitalOcean, LLC1
AS4766 · Korea Telecom1