User-Agent

okhttp/5.3.0

first seen 2026-06-11 16:05 · last seen 2026-09-04 01:52 · 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

Browser / clientokhttp 5.3.0
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
t13d1114h2_5e2a75874763_89e9e4bb341917

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.0, go-net/http 1.26.6, +10 more.The fingerprint page shows the full measured match list. More on the catalog.13
ge20nn030000_b74f9ffb1cea_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.4

HTTP/2 frames (Akamai)

fingerprintco-occurrences
4:16777216|16711681|0|m,p,a,s17

TCP SYN (p0f)

fingerprintco-occurrences
4:119+9:0:1460:62727,7:mss,sok,ts,nop,ws:df,id+:08
4:117+11:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:04
4:119+9:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:03
4:112+16:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:01
4:116+12:0:1460:62727,10:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
62727_2-4-8-1-3_1460_109
62727_2-4-8-1-3_1460_74

Country

fingerprintco-occurrences
US · United States17

Network (ASN)

fingerprintco-occurrences
AS14618 · Amazon.com, Inc.17