TLS ClientHello (JA4)
t13d2013h2_2b729b4bf6f3_e24568c0d440
first seen 2026-06-18 17:16 · last seen 2026-10-30 23:53 · JSON
Last 7 days (25 observations)
Distinct clients per day (last 30 days, peak 5/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 | 20 |
| Extension count | 13 |
| ALPN | h2 |
| Ciphers | 002f, 0035, 003c, 003d, 009c, 009d, 1301, 1302, c009, c00a, c013, c014, c023, c024, c027, c028, c02b, c02c, c02f, c030 |
| Extensions | 0005, 000a, 000b, 000d, 0017, 0023, 002b, 002d, 0031, 0033, ff01 |
| Signature algorithms | 0804, 0805, 0806, 0401, 0501, 0201, 0403, 0503, 0203, 0202, 0601, 0603 |
| JA4_r | t13d2013h2_002f,0035,003c,003d,009c,009d,1301,1302,c009,c00a,c013,c014,c023,c024,c027,c028,c02b,c02c,c02f,c030_0005,000a,000b,000d,0017,0023,002b,002d,0031,0033,ff01_0804,0805,0806,0401,0501,0201,0403,0503,0203,0202,0601,0603 |
| JA4_o (sample) | t13d2013h2_1079d97b4c9b_53aa1bee5020 |
| JA4_ro (sample) | t13d2013h2_1302,1301,c02c,c02b,c030,c02f,c024,c023,c028,c027,c00a,c009,c014,c013,009d,009c,003d,003c,0035,002f_0000,0005,002b,000d,0023,000a,000b,0010,0033,0031,0017,ff01,002d_0804,0805,0806,0401,0501,0201,0403,0503,0203,0202,0601,0603 |
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 |
|---|---|
ge20nn060000_0c07ec02b430_000000000000_000000000000 | 416 |
ge20nn070000_dd525b7b56b8_000000000000_000000000000 | 22 |
ge20nn010000_a510e5066512_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: java-httpclient 17.0.19, java-httpclient 11.0.31, winhttp 10.0.20348.1, +9 more.The fingerprint page shows the full measured match list. More on the catalog. | 7 |
ge20nn020000_9b3c08a48073_000000000000_000000000000 | 5 |
ge20nn000000_000000000000_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: rust-hyper 1.11.1, rust-hyper 1.11.0, rust-hyper 1.12.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
ge20nn03zhcn_4b3216a4d401_000000000000_000000000000 | 3 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
2:0;4:10485760|10420225|0|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: winhttp 10.0.20348.1.The fingerprint page shows the full measured match list. More on the catalog. | 446 |
2:0;4:65535|67043329|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
2:0;4:10485760|33488897|0|m,p,a,s | 4 |
2:0;4:214748364|2147418112|1:0:0:128|a,m,p,s | 1 |
2:0;4:214748364|2147418112|3:0:0:128|a,m,p,s | 1 |
2:0;4:214748364|2147418112|5:0:0:128|a,m,p,s | 1 |
TCP SYN (p0f)
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-1-1-4_1440_00 | 414 |
65535_2-1-3-1-1-4_1440_8 | 12 |
64240_2-1-3-1-1-4_1440_8 | 4 |
64240_2-4-8-1-3_1460_7 | 3 |
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 457 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS8075 · Microsoft Corporation | 454 |
AS25820 · IT7 Networks Inc | 3 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
0018,0017 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.7, powershell 5.1.26100.33648, curl 8.21.0.The fingerprint page shows the full measured match list. More on the catalog. | 47 |