User-Agent

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0

first seen 2026-06-15 02:42 · last seen 2026-06-16 06:42 · JSON

Decomposed attributes

Browser / clientFirefox 41.0
Operating systemWindows 6.1
Device classdesktop
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
t13d311100_e8f1e7e78f70_d41ae481755e Match?Exact match in Thumbprint's published controlled catalog captures: rust-hyper 1.11.0, rust-hyper 1.11.1, rust-hyper 1.10.1.The fingerprint page shows the full measured match list. More on the catalog.7
t13d190900_9dc949149365_97f8aa674fd91

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr040000_88d30a62b7ad_000000000000_0000000000007
ge11nn040000_209bf58f7e8c_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:44+20:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:45+19:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1420:mss*46,10:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

Country

fingerprintco-occurrences
BR · Brazil3
US · United States2
NL · Netherlands1
GB · United Kingdom1
IN · India1

Network (ASN)

fingerprintco-occurrences
AS36351 · IBM Cloud7
AS396982 · Google LLC1