TCP SYN (JA4T)

7300_2-4-8-1-3_1452_3

first seen 2026-07-09 08:33 · last seen 2026-07-26 09:39 · JSON

Decomposed attributes

TCP window7300
Option kinds2-4-8-1-3
MSS1452
Window scale3

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_58ed7828516f2
t13d3012h2_1d37bd780c83_882d495ac381 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.21.0, curl 8.22.0, curl 8.20.0, +6 more.The fingerprint page shows the full measured match list. More on the catalog.1

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.2
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog.1

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 (p0f)

fingerprintco-occurrences
4:42+22:0:1452:mss*5,3:mss,sok,ts,nop,ws:df,id+:01
4:45+19:0:1452:mss*5,3:mss,sok,ts,nop,ws:df,id+:01
4:47+17:0:1452:mss*5,3:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.361
curl/8.18.01
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.5 Safari/537.361

Country

fingerprintco-occurrences
RO · Romania1
ZA · South Africa1
VN · Vietnam1

Network (ASN)

fingerprintco-occurrences
AS8708 · DIGI ROMANIA S.A.1
AS7552 · Viettel Group1
AS328471 · HERO TELECOMS (PTY) LTD1