t13d030900_55b375c5d22e_3fb7e35edb64
Seen in live traffic; not in the curated database.
What this fingerprint encodes
JA4_a
t13d030900
handshake shape, human-readable
JA4_b
55b375c5d22e
truncated hash of the cipher list
JA4_c
3fb7e35edb64
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.3
- Server name
- server name sent
- Cipher suites offered
- 3
- Extensions offered
- 9
- 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 3
-
TLS_AES_128_GCM_SHA256 -
TLS_AES_256_GCM_SHA384 -
TLS_CHACHA20_POLY1305_SHA256
Extensions 9
-
server_name -
signed_certificate_timestamp -
encrypted_client_hello -
status_request -
supported_groups -
signature_algorithms -
signature_algorithms_cert -
supported_versions -
key_share
Named groups 4
-
x25519 -
secp256r1 -
secp384r1 -
secp521r1
Raw JA3 string
771,4865-4866-4867,0-18-65037-5-10-13-50-43-51,29-23-24-25,Seen in live traffic
- Connections
- 1
- First seen
- 2026-08-23 10:16 UTC
- Last seen
- 2026-08-23 10:16 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.