User-Agent

curl/7.74.0

first seen 2026-06-12 10:08 · last seen 2026-11-02 18:12 · JSON

Last 7 days (10 observations)

Distinct clients per day (last 30 days, peak 3/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 7.74.0
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
t13d1312h2_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.10, go-net/http 1.26.9, +7 more.The fingerprint page shows the full measured match list. More on the catalog.84
t13d1312h2_f57a46bbacb6_f50d94e863eb Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.1, go-net/http 1.27.3, go-net/http 1.27.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.53
t13d3113h2_e8f1e7e78f70_ce5650b735ce1
t13i1311h2_f57a46bbacb6_ab7e3b40a6771

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr020000_fb4f949fd323_000000000000_000000000000119
ge20nr030000_0db47b7d240d_000000000000_00000000000018
ge20nn030000_0db47b7d240d_000000000000_0000000000001
ge20nn020000_5594a17e7e7e_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.7.1, curl 8.5.0, curl 8.13.0, +11 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;5:16384;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.10, go-net/http 1.26.9, +8 more.The fingerprint page shows the full measured match list. More on the catalog.85
2:0;4:4194304;5:1048576;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.1, go-net/http 1.27.3, go-net/http 1.27.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.53
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, curl 7.88.1.The fingerprint page shows the full measured match list. More on the catalog.1

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:024
4:52+12:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:023
4:53+11:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:020
4:54+10:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:011
4:48+16:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:010
4:45+19:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:09
4:50+14:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:09
4:46+18:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:09
4:51+13:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:08
4:47+17:0:1460:mss*5,10:mss,sok,ts,nop,ws:df,id+,ecn:07

TCP SYN (JA4T)

fingerprintco-occurrences
7300_2-4-8-1-3_1460_10116
64240_2-4-8-1-3_1460_71

Country

fingerprintco-occurrences
US · United States42
MY · Malaysia33
DE · Germany32
JP · Japan16
SG · Singapore15
GB · United Kingdom1

Network (ASN)

fingerprintco-occurrences
AS45102 · Alibaba (US) Technology Co., Ltd.138
AS8560 · IONOS SE1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 158.0.1, firefox 159.0, firefox 157.0, +5 more.The fingerprint page shows the full measured match list. More on the catalog.21