TLS ClientHello (JA4)

t13i130900_f57a46bbacb6_e7c285222651

first seen 2026-06-11 05:00 · last seen 2026-09-06 07:06 · JSON

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

Protocolt (TLS over TCP)
TLS version13
SNIi (no SNI / IP)
Cipher count13
Extension count9
ALPN00
Ciphers1301, 1302, 1303, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions0005, 000a, 000b, 000d, 0012, 0017, 002b, 0033, ff01
Signature algorithms0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203
JA4_rt13i130900_1301,1302,1303,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,002b,0033,ff01_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203
JA4_o (sample)t13i130900_45672f90a73c_767f4d335a56
JA4_ro (sample)t13i130900_c02b,c02f,c02c,c030,cca9,cca8,c009,c013,c00a,c014,1301,1302,1303_000b,ff01,0017,0012,0005,000a,000d,002b,0033_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203

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.

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn05enus_813e32c09d15_000000000000_00000000000018
ge11nn030000_0db47b7d240d_000000000000_0000000000008
ge11nn020000_3ed38b250d3d_000000000000_0000000000008
ge11nn050000_9766b4b0354c_000000000000_0000000000007
po11nn060000_0bf38c8bb5b0_000000000000_0000000000003
ge11nn05zhcn_813e32c09d15_000000000000_0000000000003
ge11nn040000_88d30a62b7ad_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: wget 1.25.0.The fingerprint page shows the full measured match list. More on the catalog.2
ge11nn020000_fdb5000be5f4_000000000000_0000000000001
ge11nn12ruru_e78a72ca2b88_000000000000_0000000000001
ge11nn03zhcn_b486f5eb7920_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:49+15:0:1460:mss*29,9:mss,sok,ts,nop,ws:df,id+:020
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:011
4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:05
4:115+13:0:1460:62727,7:mss,sok,ts,nop,ws:df,id+:04
4:117+11:0:1460:62727,7:mss,sok,ts,nop,ws:df,id+:03
4:57+7:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:02
4:45+19:0:1410:mss*46,7:mss,sok,ts,nop,ws:df,id+:02
4:45+19:0:1412:mss*46,7:mss,sok,ts,nop,ws:df,id+:02
4:48+16:0:1412:mss*46,7:mss,sok,ts,nop,ws:df,id+:02
4:52+12:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
62727_2-4-8-1-3_1460_77

User-Agent

fingerprintco-occurrences
curl/7.68.08
RecordedFuture Global Inventory Crawler8
Mozilla/5.06
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.364
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.03
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Edg/147.0.0.02
fasthttp1
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.361
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States29
NL · Netherlands6
DE · Germany5
BG · Bulgaria4
GB · United Kingdom4
BR · Brazil3
RU · Russia2

Network (ASN)

fingerprintco-occurrences
AS22295 · Advin Services LLC20
AS14618 · Amazon.com, Inc.8
AS14061 · DigitalOcean, LLC6
AS209630 · LLC VASH KREDIT BANK5
AS50360 · Tamatiya EOOD4
AS135377 · UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED4
AS215925 · VPSVAULT.HOST LTD3
AS34665 · Petersburg Internet Network ltd.2
AS204770 · UAB "Cherry Servers"1