User-Agent

Jetpack by WordPress.com (Jetpack 12.1; WordPress 6.1)

first seen 2026-10-19 15:43 · last seen 2026-10-19 15:43 · 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 / clientJetpack by WordPress.com
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
t13d201100_2b729b4bf6f3_9e7b989ebec81

HTTP request (JA4H)

fingerprintco-occurrences
po11nn07ptbr_7d361e250c48_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
6:45+19:0:1432:mss*45,8:mss,nop,ws,nop,nop,sok:flow:01

TCP SYN (JA4T)

fingerprintco-occurrences
64440_2-1-3-1-1-4_1432_81

Country

fingerprintco-occurrences
BR · Brazil1

Network (ASN)

fingerprintco-occurrences
AS18881 · TELEFÔNICA BRASIL S.A1

TLS supported groups

fingerprintco-occurrences
001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.11.27, winhttp 10.0.20348.1, +2 more.The fingerprint page shows the full measured match list. More on the catalog.1