TLS ClientHello (JA4)
t13d1514h2_8daaf6152771_7bdcd1fc0afb
first seen 2026-09-18 16:06 · last seen 2026-10-29 08:42 · JSON
Last 7 days (1 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
| Protocol | t (TLS over TCP) |
|---|---|
| TLS version | 13 |
| SNI | d (domain) |
| Cipher count | 15 |
| Extension count | 14 |
| ALPN | h2 |
| Ciphers | 002f, 0035, 009c, 009d, 1301, 1302, 1303, c013, c014, c02b, c02c, c02f, c030, cca8, cca9 |
| Extensions | 0005, 000a, 000b, 000d, 0012, 0015, 0017, 0023, 002b, 002d, 0033, ff01 |
| Signature algorithms | 0403, 0503, 0603, 0804, 0805, 0806, 0401, 0501, 0601, 0203, 0201 |
| JA4_r | t13d1514h2_002f,0035,009c,009d,1301,1302,1303,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0015,0017,0023,002b,002d,0033,ff01_0403,0503,0603,0804,0805,0806,0401,0501,0601,0203,0201 |
| JA4_o (sample) | t13d1514h2_77608d807651_f2daf7908080 |
| JA4_ro (sample) | t13d1514h2_1301,1303,1302,c02b,c02f,cca9,cca8,c02c,c030,c013,c014,009c,009d,002f,0035_ff01,0000,000b,000a,0023,0005,0010,0012,0017,000d,002b,002d,0033,0015_0403,0503,0603,0804,0805,0806,0401,0501,0601,0203,0201 |
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 |
|---|---|
ge20nr11enus_3901d4197baf_000000000000_000000000000 | 6 |
ge20nr10enus_d353d425b0bb_000000000000_000000000000 | 3 |
ge20nr11ruru_3901d4197baf_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 5 |
1:65536;2:0;4:131072;5:16384|12517377|9:0:0:42|m,p,a,s | 2 |
1:65536;2:0;4:131072;5:16384|12517377|11:0:0:42|m,p,a,s | 1 |
1:65536;2:0;4:131072;5:16384|12517377|7:0:0:42|m,p,a,s | 1 |
1:65536;2:0;4:131072;5:16384|12517377|5:0:0:42|m,p,a,s | 1 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:114+14:0:1360:mss*48,8:mss,nop,ws,nop,nop,sok:df,id+:0 | 5 |
4:115+13:0:1360:mss*48,8:mss,nop,ws,nop,nop,sok:df,id+:0 | 4 |
4:110+18:0:1440:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:0 | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
65280_2-1-3-1-1-4_1360_8 | 9 |
64240_2-1-3-1-1-4_1440_8 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:156.0) Gecko/20100101 Firefox/156.0 | 9 |
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:145.0) Gecko/20100101 Firefox/145.0 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
DE · Germany | 7 |
RU · Russia | 3 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS59796 · StormWall s.r.o. | 7 |
AS43298 · Storm Networks LLC | 2 |
AS8749 · JSC "Redcom-lnternet" | 1 |
TLS supported groups
| fingerprint | co-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. | 1 |