User-Agent

http3check.net/lsquic/4.0.0

first seen 2026-06-26 03:05 · last seen 2026-07-09 23:11 · JSON

Decomposed attributes

Browser / clienthttp3check.net lsquic/4.0.0
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
q13d0308h3_55b375c5d22e_f0736a66fa6b2

HTTP request (JA4H)

fingerprintco-occurrences
he30nn020000_3ed38b250d3d_000000000000_0000000000001
he30nn010000_a510e5066512_000000000000_0000000000001

QUIC transport params

fingerprintco-occurrences
q11_38b737c2f8362

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS20473 · The Constant Company, LLC2