t12d050700_fe8b0b18143e_bddf2a23d4a4
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t12d050700
handshake shape, human-readable
JA4_b
fe8b0b18143e
truncated hash of the cipher list
JA4_c
bddf2a23d4a4
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.2
- Server name
- server name sent
- Cipher suites offered
- 5
- 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 5
-
TLS_AES_128_GCM_SHA256 -
TLS_AES_256_GCM_SHA384 -
TLS_CHACHA20_POLY1305_SHA256 -
TLS_AES_128_CCM_SHA256 -
TLS_AES_128_CCM_8_SHA256
Extensions 7
-
server_name -
ec_point_formats -
session_ticket -
signature_algorithms -
supported_groups -
25497 (0x6399) -
19090 (0x4a92)
Named groups 11
-
secp256r1 -
secp521r1 -
secp384r1 -
x25519 -
x448 -
ffdhe2048 -
ffdhe3072 -
ffdhe4096 -
259 (0x0103) -
260 (0x0104) -
SecP256r1MLKEM768
Point formats 3
-
uncompressed -
ansiX962_compressed_prime -
ansiX962_compressed_char2
Raw JA3 string
771,4865-4866-4867-4868-4869,0-11-35-13-10-25497-19090,23-25-24-29-30-256-257-258-259-260-4588,0-1-2Seen in live traffic
- Connections
- 1
- First seen
- 2026-10-06 20:48 UTC
- Last seen
- 2026-10-06 20:48 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.