TLS ClientHello (JA4)

t13d1312h2_f57a46bbacb6_a089bac06eae

first seen 2026-10-28 23:33 · last seen 2026-10-28 23:33 · JSON

Last 7 days (6 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

Protocolt (TLS over TCP)
TLS version13
SNId (domain)
Cipher count13
Extension count12
ALPNh2
Ciphers1301, 1302, 1303, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9
Extensions0005, 000a, 000b, 000d, 0012, 0017, 002b, 0032, 0033, ff01
Signature algorithms0904, 0905, 0906, 0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203
JA4_rt13d1312h2_1301,1302,1303,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,002b,0032,0033,ff01_0904,0905,0906,0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203
JA4_o (sample)t13d1312h2_45672f90a73c_d0dea502ed1f
JA4_ro (sample)t13d1312h2_c02b,c02f,c02c,c030,cca9,cca8,c009,c013,c00a,c014,1301,1302,1303_0000,000b,ff01,0017,0012,0005,000a,000d,0032,0010,002b,0033_0904,0905,0906,0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203

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
ge20nn08ruru_a432c897f1d5_000000000000_0000000000001
ge20nn08ruru_1a39fe249177_000000000000_0000000000001
ge20nn08ruru_d774a41a69e9_000000000000_0000000000001
ge20nn08ruru_d70931d4a079_000000000000_0000000000001
ge20nn08ruru_ebf4d00e3242_000000000000_0000000000001
ge20nn08ruru_3d65cad4ba53_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;4:4194304;5:1048576;6:65856|1073741824|0|a,m,p,s6

TCP SYN (p0f)

fingerprintco-occurrences
6:44+20:0:1380:mss*45,7:mss,sok,ts,nop,ws:flow:06

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1380_76

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (iPhone; CPU iPhone OS 18_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Mobile/15E148 Safari/604.16

Country

fingerprintco-occurrences
DE · Germany6

Network (ASN)

fingerprintco-occurrences
AS215730 · H2NEXUS CLOUD SERVICES - FZCO6

TLS supported groups

fingerprintco-occurrences
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.6