TLS ClientHello (JA4)
t13d0917h2_f91f431d341e_3cbfd9057e0d
first seen 2026-06-26 11:53 · last seen 2026-07-22 13:19 · JSON
Decomposed attributes
| Protocol | t (TLS over TCP) |
|---|---|
| TLS version | 13 |
| SNI | d (domain) |
| Cipher count | 9 |
| Extension count | 17 |
| ALPN | h2 |
| Ciphers | 1301, 1302, 1303, c02b, c02c, c02f, c030, cca8, cca9 |
| Extensions | 0005, 000a, 000b, 000d, 0012, 0017, 001b, 001c, 0022, 0023, 002b, 002d, 0033, fe0d, ff01 |
| Signature algorithms | 0403, 0503, 0603, 0804, 0805, 0806, 0401, 0501, 0601, 0203, 0201 |
| JA4_r | t13d0917h2_1301,1302,1303,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,001b,001c,0022,0023,002b,002d,0033,fe0d,ff01_0403,0503,0603,0804,0805,0806,0401,0501,0601,0203,0201 |
| JA4_o (sample) | t13d0917h2_98420b08e780_df135d36b6d5 |
| JA4_ro (sample) | t13d0917h2_1301,1303,1302,c02b,c02f,cca9,cca8,c02c,c030_0000,0017,ff01,000a,000b,0023,0010,0005,0022,0012,0033,002b,000d,002d,001c,001b,fe0d_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)
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|3:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +25 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
1:65536;2:0;4:131072;5:16384|12517377|9:0:0:42|m,p,a,s | 1 |
1:65536;2:0;4:131072;5:16384|12517377|5:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0.3, firefox 154.0, firefox 153.0, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:131072;5:16384|12517377|7:0:0:22|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0.3, firefox 155.0, firefox 154.0, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
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|5:0:0:42|m,p,a,s | 1 |
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|---|
4:241+14:0:1420:mss*42,8:mss,nop,ws,sok,eol+1:df,id+:0 | 11 |
4:242+13:0:1420:mss*42,8:mss,nop,ws,sok,eol+1:df,id+:0 | 3 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
59640_2-1-3-4-0-0_1420_8 | 12 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0 | 14 |
Country
| fingerprint | co-occurrences |
|---|---|
FR · France | 14 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS15557 · Societe Francaise Du Radiotelephone - SFR SA | 14 |