User-Agent

curl/8.22.0

first seen 2026-09-02 21:25 · last seen 2026-10-30 00:05 · JSON

Last 7 days (2 observations)

Distinct clients per day (last 30 days, peak 4/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 8.22.0
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
t13d3013h1_1d37bd780c83_8537cf56674e25
t13d3013h2_1d37bd780c83_8537cf56674e16
q13d0313h3_55b375c5d22e_19cb63ff03833
t13d2013h1_2b729b4bf6f3_e24568c0d4401
t13d9013h2_c6771aded2ed_57a60bdf03d11

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_5d05004232a2_000000000000_00000000000025
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.13
ge20nn030000_dd5957970d8a_000000000000_0000000000004
ge30nn030000_dd5957970d8a_000000000000_0000000000003
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0, curl 7.88.1, curl 8.21.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP/2 frames (Akamai)

fingerprintco-occurrences
3:100;4:65536;2:0|1048510465|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.13.0, curl 8.18.0, curl 8.21.0, +8 more.The fingerprint page shows the full measured match list. More on the catalog.17

TCP SYN (p0f)

fingerprintco-occurrences
6:44+20:0:1360:mss*48,10:mss,sok,ts,nop,ws:flow:010
4:40+24:0:1380:mss*47,10:mss,sok,ts,nop,ws:df,id+:09
6:45+19:0:1360:mss*48,10:mss,sok,ts,nop,ws:flow:08
4:39+25:0:1380:mss*47,10:mss,sok,ts,nop,ws:df,id+:02
4:47+17:0:1420:mss*46,10:mss,sok,ts,nop,ws:df,id+:02
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:57+7:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:47+17:0:1440:65535,6:mss,sok,ts,nop,ws:df,id+:01
4:56+8:0:1460:mss*44,7: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
65280_2-4-8-1-3_1360_1018
64860_2-4-8-1-3_1380_1011
64240_2-4-8-1-3_1460_74
65320_2-4-8-1-3_1420_102
8192_2-1-3-1-1-4_1460_82
64320_2-4-8-1-3_1340_101
64240_2-4-8-1-3_1440_101
65535_2-4-8-1-3_1440_61
65535_2-1-3-1-1-4_1412_81
64240_2-4-8-1-3_1420_101

QUIC transport params

fingerprintco-occurrences
q08_bae576bf37b0 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.18.0.The fingerprint page shows the full measured match list. More on the catalog.3

Country

fingerprintco-occurrences
PL · Poland33
US · United States4
CN · China4
UA · Ukraine2
CH · Switzerland1
FR · France1
VN · Vietnam1

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS32
AS979 · NetLab Global4
AS34700 · MAXNET TELECOM, LTD2
AS4134 · CHINANET BACKBONE1
AS9141 · P4 Sp. z o.o.1
AS7552 · Viettel Group1
AS134768 · CHINANET SHAANXI province Cloud Base network1
AS56044 · China Mobile communications corporation1
AS39486 · HostRoyale Technologies Pvt Ltd1
AS15796 · Salt Mobile SA1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,001e,0018,0019,0100,0101 Match?Exact match in Thumbprint's published controlled catalog captures: node-fetch 24.22.1, python-httpx 0.28.1, python-requests 2.34.2, +2 more.The fingerprint page shows the full measured match list. More on the catalog.5
001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28, rust-reqwest 0.11.27, powershell 7.6.8, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1