TLS ClientHello (JA4)
t13d1311h2_f57a46bbacb6_e7c285222651
first seen 2026-06-17 09:51 · last seen 2026-10-26 05:14 · 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
| Protocol | t (TLS over TCP) |
|---|---|
| TLS version | 13 |
| SNI | d (domain) |
| Cipher count | 13 |
| Extension count | 11 |
| ALPN | h2 |
| Ciphers | 1301, 1302, 1303, c009, c00a, c013, c014, c02b, c02c, c02f, c030, cca8, cca9 |
| Extensions | 0005, 000a, 000b, 000d, 0012, 0017, 002b, 0033, ff01 |
| Signature algorithms | 0804, 0403, 0807, 0805, 0806, 0401, 0501, 0601, 0503, 0603, 0201, 0203 |
| JA4_r | t13d1311h2_1301,1302,1303,c009,c00a,c013,c014,c02b,c02c,c02f,c030,cca8,cca9_0005,000a,000b,000d,0012,0017,002b,0033,ff01_0804,0403,0807,0805,0806,0401,0501,0601,0503,0603,0201,0203 |
| JA4_o (sample) | t13d1311h2_45672f90a73c_fe8fa1c5cc33 |
| JA4_ro (sample) | t13d1311h2_c02b,c02f,c02c,c030,cca9,cca8,c009,c013,c00a,c014,1301,1302,1303_0000,000b,ff01,0017,0012,0005,000a,000d,0010,002b,0033_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)
| fingerprint | co-occurrences |
|---|---|
ge20nn020000_fb4f949fd323_000000000000_000000000000 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. | 5 |
ge20nn030000_ff50983941c1_000000000000_000000000000 | 4 |
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.0, +14 more.The fingerprint page shows the full measured match list. More on the catalog. | 4 |
ge20nn030000_80b089f68b8e_000000000000_000000000000 | 3 |
ge20nn04enus_39a3ba4480e8_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.1.2.The fingerprint page shows the full measured match list. More on the catalog. | 3 |
ge20nn030000_0db47b7d240d_000000000000_000000000000 | 1 |
ge20nn030000_b74f9ffb1cea_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
ge20nr030000_ff50983941c1_000000000000_000000000000 | 1 |
ge20nn05enus_eeed6042a2dd_000000000000_000000000000 | 1 |
ge20nr08enus_b29e9d0b8340_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
2:0;4:4194304;5:16384;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.10, go-net/http 1.26.9, +8 more.The fingerprint page shows the full measured match list. More on the catalog. | 20 |
2:0;4:4194304;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog. | 8 |
2:0;4:4194304;5:1048576;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.27.1, go-net/http 1.27.0, go-net/http 1.27.3, +1 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (p0f)
TCP SYN (JA4T)
User-Agent
Country
| fingerprint | co-occurrences |
|---|---|
US · United States | 8 |
AE · United Arab Emirates | 6 |
NL · Netherlands | 4 |
JP · Japan | 4 |
HK · Hong Kong SAR China | 2 |
CH · Switzerland | 1 |
ID · Indonesia | 1 |
IE · Ireland | 1 |
DK · Denmark | 1 |
PA · Panama | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS8075 · Microsoft Corporation | 6 |
AS31898 · Oracle Corporation | 6 |
AS16509 · Amazon.com, Inc. | 5 |
AS64107 · RACK SPHERE HOSTING S.A. | 4 |
AS63949 · Akamai Connected Cloud | 1 |
AS396982 · Google LLC | 1 |
AS14618 · Amazon.com, Inc. | 1 |
AS36352 · HostPapa | 1 |
AS139981 · PT. Menaksopal Link Nusantara | 1 |
AS402253 · SKN Subnet & Telecom Ltd | 1 |
TLS supported groups
| fingerprint | co-occurrences |
|---|---|
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 157.0.1, firefox-esr 153.5.1esr, firefox 158.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 6 |