User-Agent
Mozilla/5.0 (Windows NT 10.0; x64) AppleWebKit/537.36 (KHTML, like Gecko) Firefox/81.0.0.0 Safari/537.36
first seen 2026-08-17 11:24 · last seen 2026-09-29 18:55 · JSON
Decomposed attributes
| Browser / client | Firefox 81.0.0.0 |
|---|
| Operating system | Windows 10.0 |
|---|
| Device class | desktop |
|---|
| Note | inferred 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)
HTTP request (JA4H)
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|
4:116+12:0:1400:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:0 | 1 |
6:42+22:0:1432:mss*45,8:mss,nop,ws,nop,nop,sok:flow:0 | 1 |
TCP SYN (JA4T)
Country
| fingerprint | co-occurrences |
|---|
BR · Brazil | 1 |
TN · Tunisia | 1 |
Network (ASN)