User-Agent

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

first seen 2026-06-11 09:46 · last seen 2026-09-12 16:29 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

Browser / clientFirefox 65.0
Operating systemWindows 10.0
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
t12d860700_e18388e7f3a3_4446390ac2242
t13d251100_b78ed14e2fd0_ab7e3b40a6771
t13d251000_b78ed14e2fd0_e7c2852226511

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn030000_6f76d0e5ec76_000000000000_0000000000002
ge11nn040000_209bf58f7e8c_000000000000_0000000000001
ge11nr050000_57c5e92682a8_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:45+19:0:1380:mss*20,7:mss,sok,ts,nop,ws:df,id+:01
4:44+20:0:1380:mss*20,7:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1412:mss*46,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64952_2-4-8-1-3_1412_71

Country

fingerprintco-occurrences
US · United States3
SG · Singapore1

Network (ASN)

fingerprintco-occurrences
AS16417 · Cisco Systems Ironport Division2
AS141995 · Contabo Asia Private Limited1
AS135377 · UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED1