User-Agent

curl/8.4.0

first seen 2026-07-01 15:00 · last seen 2026-08-07 07:54 · JSON

Decomposed attributes

Browser / clientcurl 8.4.0
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
t13d3612h2_018971650b2c_d25cae7eed4b3
t13d1312h2_a44d0ee8b3cc_e381dae6da6b1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.18.0, +9 more.The fingerprint page shows the full measured match list. More on the catalog.3
ge20nn100000_337eb41b7e26_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:10485760;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0.The fingerprint page shows the full measured match list. More on the catalog.3
2:0;3:1;4:8388608;5:65536|8323073|0|m,s,a,p1

TCP SYN (p0f)

fingerprintco-occurrences
4:48+16:0:1424:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:48+16:0:1460:65535,13:mss,sok,ts,nop,ws:df,id+:01
4:48+16:0:1424:59220,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1424_72
65535_2-4-8-1-3_1460_131
59220_2-4-8-1-3_1424_71

Country

fingerprintco-occurrences
CN · China3
US · United States1

Network (ASN)

fingerprintco-occurrences
AS45090 · Shenzhen Tencent Computer Systems Company Limited3
AS13335 · Cloudflare, Inc.1