t12d0609h2_39a52dd9ae43_b9795cdc2708
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t12d0609h2
handshake shape, human-readable
JA4_b
39a52dd9ae43
truncated hash of the cipher list
JA4_c
b9795cdc2708
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.2
- Server name
- server name sent
- Cipher suites offered
- 6
- Extensions offered
- 9
- ALPN
- h2
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 6
-
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
Extensions 9
-
server_name -
extended_master_secret -
renegotiation_info -
supported_groups -
ec_point_formats -
session_ticket -
application_layer_protocol_negotiation -
signature_algorithms -
padding
Named groups 2
-
x25519 -
secp256r1
Point formats 1
-
uncompressed
Raw JA3 string
771,49195-52393-49199-52392-49196-49200,0-23-65281-10-11-35-16-13-21,29-23,0Seen in live traffic
- Connections
- 2
- First seen
- 2026-08-29 04:05 UTC
- Last seen
- 2026-08-29 04:05 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.