QUIC transport params

q13_dd2837bc12e2

first seen 2026-08-22 20:30 · last seen 2026-08-22 21:02 · JSON

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

Transport-parameter count13
Transport-parameter IDs0001, 0004, 0005, 0006, 0007, 0008, 0009, 000b, 000e, 000f, 0011, 0020, 2ab2
QTP rawq13_0001,0004,0005,0006,0007,0008,0009,000b,000e,000f,0011,0020,2ab2

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
q13d0315h3_55b375c5d22e_dc5437974b47 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +18 more.The fingerprint page shows the full measured match list. More on the catalog.5

HTTP request (JA4H)

fingerprintco-occurrences
ge30nr12enus_35ca41c56357_000000000000_0000000000002
ge30nn12enus_35ca41c56357_000000000000_0000000000002
ge30nn11enus_21988cdf9f27_000000000000_0000000000001

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.365

Country

fingerprintco-occurrences
FI · Finland5

Network (ASN)

fingerprintco-occurrences
AS39351 · 31173 Services AB5