User-Agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
first seen 2026-06-22 04:08 · last seen 2026-08-31 15:00 · JSON
Decomposed attributes
| Browser / client | Firefox 115.0 |
|---|
| Operating system | Windows 6.1 |
|---|
| 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)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|
1:65536;4:131072;5:16384|12517377|3:0:0:201,5:0:0:101,7:0:0:1,9:0:7:1,11:0:3:1,13:0:0:241,15:0:13:42|m,p,a,s | 3 |
1:65536;4:131072;5:16384|12517377|3:0:0:201,5:0:0:101,7:0:0:1,9:0:7:1,11:0:3:1,13:0:0:241,17:0:13:42|m,p,a,s | 2 |
1:65536;4:131072;5:16384|12517377|3:0:0:201,5:0:0:101,7:0:0:1,9:0:7:1,11:0:3:1,13:0:0:241,19:0:13:42|m,p,a,s | 1 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 | 7 |
4:53+11:0:1460:mss*29,12:mss,sok,ts,nop,ws:df,id+:0 | 3 |
4:113+15:0:1460:65535,1:mss,nop,ws,nop,nop,sok:df,id+,ecn:0 | 3 |
4:111+17:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+:0 | 2 |
4:113+15:0:1460:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0 | 1 |
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 | 1 |
TCP SYN (JA4T)
Country
| fingerprint | co-occurrences |
|---|
US · United States | 7 |
NL · Netherlands | 4 |
GB · United Kingdom | 4 |
RU · Russia | 2 |
Network (ASN)