t13d091000_f91f431d341e_2efff61f9e18
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t13d091000
handshake shape, human-readable
JA4_b
f91f431d341e
truncated hash of the cipher list
JA4_c
2efff61f9e18
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.3
- Server name
- server name sent
- Cipher suites offered
- 9
- Extensions offered
- 10
- 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 9
-
TLS_AES_256_GCM_SHA384 -
TLS_CHACHA20_POLY1305_SHA256 -
TLS_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Extensions 10
-
key_share -
supported_versions -
ec_point_formats -
compress_certificate -
signature_algorithms -
supported_groups -
status_request -
server_name -
psk_key_exchange_modes -
extended_master_secret
Named groups 3
-
SecP256r1MLKEM768 -
secp384r1 -
secp256r1
Point formats 1
-
uncompressed
Raw JA3 string
771,4866-4867-4865-49196-49195-52393-49200-49199-52392,51-43-11-27-13-10-5-0-45-23,4588-24-23,0Seen in live traffic
- Connections
- 1
- First seen
- 2026-10-15 00:33 UTC
- Last seen
- 2026-10-15 00:33 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.