User-Agent

curl/7.88.1

first seen 2026-07-31 12:56 · last seen 2026-09-12 08:49 · JSON

Last 7 days (1 observations)

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 / clientcurl 7.88.1
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
t13d3112h2_e8f1e7e78f70_b26ce05bbdd6 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.5.0, php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.3
t12d8007h2_9cedc1f1428b_8587f467d9ea1

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
he20nn030000_ba3fe9136eb1_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:33554432;2:0|33488897|0|m,p,s,a Match?Exact match in Thumbprint's published controlled catalog captures: php-curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.4

TCP SYN (p0f)

fingerprintco-occurrences
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1460:mss*29,10:mss,sok,ts,nop,ws:df,id+:01
4:44+20:0:1460:mss*20,7:mss,sok,ts,nop,ws:df,id+:01
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1460_72
42340_2-4-8-1-3_1460_101
29200_2-4-8-1-3_1460_71

Country

fingerprintco-occurrences
US · United States2
SE · Sweden1
CN · China1

Network (ASN)

fingerprintco-occurrences
AS396982 · Google LLC1
AS4134 · CHINANET BACKBONE1
AS30633 · Leaseweb USA, Inc.1
AS39287 · Materialism s.r.l.1