TLS ClientHello (JA4)
t13d0911h2_8e36ee33749f_9ced094328c9
first seen 2026-08-18 09:48 · last seen 2026-10-10 23:52 · 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
| Protocol | t (TLS over TCP) |
|---|---|
| TLS version | 13 |
| SNI | d (domain) |
| Cipher count | 9 |
| Extension count | 11 |
| ALPN | h2 |
| Ciphers | 002f, 0035, 009d, 1301, 1302, 1303, c013, c014, cca8 |
| Extensions | 000a, 000b, 000d, 0017, 0023, 002b, 002d, 0033, ff01 |
| Signature algorithms | 0403, 0804, 0401, 0503, 0805, 0501, 0806, 0601 |
| JA4_r | t13d0911h2_002f,0035,009d,1301,1302,1303,c013,c014,cca8_000a,000b,000d,0017,0023,002b,002d,0033,ff01_0403,0804,0401,0503,0805,0501,0806,0601 |
| JA4_o (sample) | t13d0911h2_cf2cfdd3db37_646d300600fe |
| JA4_ro (sample) | t13d0911h2_1301,1302,1303,009d,002f,c013,cca8,c014,0035_002b,0000,0023,0017,0010,000a,0033,002d,ff01,000b,000d_0403,0804,0401,0503,0805,0501,0806,0601 |
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)
| fingerprint | co-occurrences |
|---|---|
ge20nn04enus_989c7cc05c9b_000000000000_000000000000 | 3 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:6291456;6:262144;4:1048576|15663105|1:0:0:256|m,a,s,p | 3 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 | 1 |
4:46+18:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 | 1 |
4:55+9:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-4-8-1-3_1460_7 | 3 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.4 Safari/537.36 | 3 |
Country
| fingerprint | co-occurrences |
|---|---|
NL · Netherlands | 1 |
RO · Romania | 1 |
SE · Sweden | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS47890 · UNMANAGED LTD | 1 |
AS61125 · SABOTAGE LLC | 1 |
AS198093 · Foreningen for digitala fri- och rattigheter | 1 |