User-Agent

Go-http-client/1.1

first seen 2026-06-11 02:26 · last seen 2026-10-30 08:40 · JSON

Last 7 days (15 observations)

Distinct clients per day (last 30 days, peak 12/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 / clientGo-http-client 1.1
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
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog.394
t13d191000_9dc949149365_e7c28522265172
t13d191100_9dc949149365_e5728521abd435
t13d141000_cbb2034c60b8_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.22.12.The fingerprint page shows the full measured match list. More on the catalog.34
t13d131100_f57a46bbacb6_e5728521abd416
t13d131000_f57a46bbacb6_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.11
t13i131000_f57a46bbacb6_ab7e3b40a6779
t13d131100_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.7
t13d190900_9dc949149365_97f8aa674fd95
t13d131100_f57a46bbacb6_a089bac06eae5

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_8391bea91fb6_000000000000_000000000000218
ge11nr030000_cd680697de12_000000000000_000000000000142
ge11nr040000_8391bea91fb6_000000000000_000000000000105
ge11nr030000_0db47b7d240d_000000000000_00000000000062
ge11nn030000_0db47b7d240d_000000000000_00000000000017
ge11nn030000_cd680697de12_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.5, powershell 7.6.4, +11 more.The fingerprint page shows the full measured match list. More on the catalog.17
he11nn020000_818f42cc3fd7_000000000000_0000000000008
po11nn040000_b9c176b8216c_000000000000_0000000000006
ge11nr020000_818f42cc3fd7_000000000000_0000000000005
ge11nr040000_9c3956fad5da_000000000000_0000000000004

TCP SYN (p0f)

fingerprintco-occurrences
4:116+12:0:1160:65535,8:mss,nop,ws,nop,nop,sok:df,id+:097
4:115+13:0:1160:65535,8:mss,nop,ws,nop,nop,sok:df,id+:084
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:035
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:033
4:43+21:0:1412:mss*46,7:mss,sok,ts,nop,ws:df,id+:016
4:44+20:0:1412:mss*46,7:mss,sok,ts,nop,ws:df,id+:016
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:015
4:55+9:0:1360:mss*48,7:mss,sok,ts,nop,ws:df,id+:013
4:51+13:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:012
4:50+14:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:08

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-4_1160_8188
64240_2-4-8-1-3_1460_7115
64952_2-4-8-1-3_1412_745
65280_2-4-8-1-3_1360_721
64800_2-4-8-1-3_1440_717
42340_2-4-8-1-3_1460_917
42780_2-4-8-1-3_1380_912
43520_2-4-8-1-3_1280_912
32120_2-4-8-1-3_1460_710
64240_2-4-8-1-3_1460_109

Country

fingerprintco-occurrences
DE · Germany259
NL · Netherlands77
HK · Hong Kong SAR China47
US · United States35
PL · Poland33
FR · France24
TH · Thailand19
SI · Slovenia16
CN · China15
SG · Singapore8

Network (ASN)

fingerprintco-occurrences
AS212238 · Datacamp Limited201
AS135377 · UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED52
AS14061 · DigitalOcean, LLC41
AS201814 · MEVSPACE sp. z o.o.32
AS197769 · VPS Dedicated LLC28
AS34343 · BIP Backbone ASN27
AS51167 · Contabo GmbH18
AS51396 · Pfcloud UG17
AS45102 · Alibaba (US) Technology Co., Ltd.15
AS8075 · Microsoft Corporation8

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 157.0.1, firefox-esr 153.5.1esr, firefox 158.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.12
001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13.The fingerprint page shows the full measured match list. More on the catalog.9
11ec,11eb,11ed,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.3, go-net/http 1.26.10.The fingerprint page shows the full measured match list. More on the catalog.8