t13d201200_2b729b4bf6f3_d42405ff081a
Seen in live traffic; not in the curated database.
What this fingerprint encodes
JA4_a
t13d201200
handshake shape, human-readable
JA4_b
2b729b4bf6f3
truncated hash of the cipher list
JA4_c
d42405ff081a
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.3
- Server name
- server name sent
- Cipher suites offered
- 20
- Extensions offered
- 12
- 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 20
-
TLS_AES_256_GCM_SHA384 -
TLS_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA -
TLS_RSA_WITH_AES_256_GCM_SHA384 -
TLS_RSA_WITH_AES_128_GCM_SHA256 -
TLS_RSA_WITH_AES_256_CBC_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_RSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_AES_128_CBC_SHA
Extensions 12
-
server_name -
supported_versions -
signature_algorithms -
session_ticket -
supported_groups -
ec_point_formats -
key_share -
post_handshake_auth -
extended_master_secret -
renegotiation_info -
psk_key_exchange_modes -
pre_shared_key
Named groups 3
-
x25519 -
secp256r1 -
secp384r1
Point formats 1
-
uncompressed
Raw JA3 string
771,4866-4865-49196-49195-49200-49199-49188-49187-49192-49191-49162-49161-49172-49171-157-156-61-60-53-47,0-43-13-35-10-11-51-49-23-65281-45-41,29-23-24,0Seen in live traffic
- Connections
- 1
- First seen
- 2026-08-23 00:03 UTC
- Last seen
- 2026-08-23 00:03 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.