t13i0308h2_55b375c5d22e_f150a32a4db6
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t13i0308h2
handshake shape, human-readable
JA4_b
55b375c5d22e
truncated hash of the cipher list
JA4_c
f150a32a4db6
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.3
- Server name
- no server name (IP literal)
- Cipher suites offered
- 3
- Extensions offered
- 8
- 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 3
-
TLS_CHACHA20_POLY1305_SHA256 -
TLS_AES_256_GCM_SHA384 -
TLS_AES_128_GCM_SHA256
Extensions 8
-
supported_versions -
supported_groups -
key_share -
signature_algorithms -
application_layer_protocol_negotiation -
psk_key_exchange_modes -
record_size_limit -
58 (0x003a)
Named groups 4
-
secp521r1 -
secp384r1 -
secp256r1 -
x25519
Raw JA3 string
771,4867-4866-4865,43-10-51-13-16-45-28-58,25-24-23-29,Seen in live traffic
- Connections
- 1
- First seen
- 2026-08-23 15:06 UTC
- Last seen
- 2026-08-23 15:06 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.