User-Agent

Mozilla/5.0 (compatible; SecurityResearch/1.0; )

first seen 2026-06-11 21:34 · last seen 2026-08-01 10:54 · JSON

Decomposed attributes

Browser / clientSecurityResearch 1.0
Noteinferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above

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
t13d131000_f57a46bbacb6_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.8
t13d191100_9dc949149365_e5728521abd42

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr040000_8391bea91fb6_000000000000_0000000000006
ge11nn030000_72be10f4ec6f_000000000000_0000000000002
ge11nr030000_0db47b7d240d_000000000000_0000000000002

TCP SYN (p0f)

fingerprintco-occurrences
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:04
4:53+11:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:03
4:56+8:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:02
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_74
42340_2-4-8-1-3_1460_122

Country

fingerprintco-occurrences
NL · Netherlands5
RO · Romania5

Network (ASN)

fingerprintco-occurrences
AS47890 · UNMANAGED LTD5
AS48090 · TECHOFF SRV LIMITED4
AS216014 · BestDC Limited1