t13d1615h2_900270fed9e9_3e6f58436cd0
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t13d1615h2
handshake shape, human-readable
JA4_b
900270fed9e9
truncated hash of the cipher list
JA4_c
3e6f58436cd0
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.3
- Server name
- server name sent
- Cipher suites offered
- 16
- Extensions offered
- 15
- 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_AES_256_GCM_SHA384 -
TLS_CHACHA20_POLY1305_SHA256 -
TLS_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_AES_256_CBC_SHA
Extensions 15
-
status_request -
session_ticket -
padding -
renegotiation_info -
key_share -
ec_point_formats -
supported_versions -
application_settings -
application_layer_protocol_negotiation -
extended_master_secret -
psk_key_exchange_modes -
server_name -
signed_certificate_timestamp -
supported_groups -
signature_algorithms
Named groups 4
-
x25519 -
secp256r1 -
secp384r1 -
secp521r1
Point formats 1
-
uncompressed
Raw JA3 string
771,4866-4867-4865-49187-60-49195-49196-49199-157-49191-49161-49162-47-49171-49172-53,5-35-21-65281-51-11-43-17513-16-23-45-0-18-10-13,29-23-24-25,0Seen in live traffic
- Connections
- 1
- First seen
- 2026-10-27 13:38 UTC
- Last seen
- 2026-10-27 13:38 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.