t13d1613h2_8b7ed0b7403b_277dd3cf83a4
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t13d1613h2
handshake shape, human-readable
JA4_b
8b7ed0b7403b
truncated hash of the cipher list
JA4_c
277dd3cf83a4
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.3
- Server name
- server name sent
- Cipher suites offered
- 16
- Extensions offered
- 13
- 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 16
-
TLS_CHACHA20_POLY1305_SHA256 -
TLS_AES_256_GCM_SHA384 -
TLS_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
Extensions 13
-
padding -
ec_point_formats -
supported_groups -
supported_versions -
key_share -
psk_key_exchange_modes -
application_layer_protocol_negotiation -
server_name -
signature_algorithms -
session_ticket -
status_request -
renegotiation_info -
extended_master_secret
Named groups 3
-
x25519 -
secp256r1 -
secp384r1
Point formats 1
-
uncompressed
Raw JA3 string
771,4867-4866-4865-49191-49187-52393-157-52392-49196-49199-156-49200-60-49161-49162-49170,21-11-10-43-51-45-16-0-13-35-5-65281-23,29-23-24,0Seen in live traffic
- Connections
- 1
- First seen
- 2026-09-06 13:17 UTC
- Last seen
- 2026-09-06 13:17 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.