t12d560700_99d8c53049f3_577401a16f57
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t12d560700
handshake shape, human-readable
JA4_b
99d8c53049f3
truncated hash of the cipher list
JA4_c
577401a16f57
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.2
- Server name
- server name sent
- Cipher suites offered
- 56
- Extensions offered
- 7
- ALPN
- none offered
The hello it was computed from
Recovered because the proxy now stores the pre-hash JA3 string alongside the digest. Every number below came out of this client's ClientHello; anything we cannot name in the IANA registry is shown as its raw value rather than guessed at.
- Version
- TLS 1.2
Cipher suites 56
-
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 -
163 (0x00a3) -
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_DHE_RSA_WITH_AES_256_CCM -
TLS_RSA_WITH_AES_256_CCM -
TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 -
TLS_RSA_WITH_ARIA_256_GCM_SHA384 -
49245 (0xc05d) -
TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 -
49239 (0xc057) -
49235 (0xc053) -
162 (0x00a2) -
TLS_DHE_RSA_WITH_AES_128_CCM -
TLS_RSA_WITH_AES_128_CCM -
TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 -
TLS_RSA_WITH_ARIA_128_GCM_SHA256 -
49244 (0xc05c) -
TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 -
49238 (0xc056) -
49234 (0xc052) -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 -
106 (0x006a) -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 -
64 (0x0040) -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA -
56 (0x0038) -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA -
50 (0x0032) -
TLS_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 -
TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 -
49233 (0xc051) -
TLS_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 -
TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 -
49232 (0xc050) -
TLS_RSA_WITH_AES_256_CBC_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_RSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_AES_128_CBC_SHA -
TLS_EMPTY_RENEGOTIATION_INFO_SCSV
Extensions 7
-
server_name -
ec_point_formats -
supported_groups -
session_ticket -
encrypt_then_mac -
extended_master_secret -
signature_algorithms
Named groups 5
-
x25519 -
secp256r1 -
x448 -
secp521r1 -
secp384r1
Point formats 3
-
uncompressed -
ansiX962_compressed_prime -
ansiX962_compressed_char2
Raw JA3 string
771,49199-49195-49200-49196-158-49191-103-49192-107-163-159-52393-52392-52394-49327-49325-49315-49311-49245-49249-49239-49235-162-49326-49324-49314-49310-49244-49248-49238-49234-49188-106-49187-64-49162-49172-57-56-49161-49171-51-50-157-49313-49309-49233-156-49312-49308-49232-61-60-53-47-255,0-11-10-35-22-23-13,29-23-30-25-24,0-1-2Seen in live traffic
- Connections
- 1
- First seen
- 2026-09-09 02:52 UTC
- Last seen
- 2026-09-09 02:52 UTC
- Transport
- TCP
This entry is an observation, not a policy decision. It is here because the edge saw it, not because anyone reviewed it, and it blocks nothing on its own. Only the curated tier drives classification and banning.