t13d2013h2_a09f3c656075_fb18a4f6686c
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t13d2013h2
handshake shape, human-readable
JA4_b
a09f3c656075
truncated hash of the cipher list
JA4_c
fb18a4f6686c
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.3
- Server name
- server name sent
- Cipher suites offered
- 20
- 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 20
-
TLS_AES_256_GCM_SHA384 -
TLS_CHACHA20_POLY1305_SHA256 -
TLS_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_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_SHA -
TLS_RSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA -
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA -
TLS_RSA_WITH_3DES_EDE_CBC_SHA
Extensions 13
-
server_name -
extended_master_secret -
renegotiation_info -
supported_groups -
ec_point_formats -
application_layer_protocol_negotiation -
status_request -
signature_algorithms -
signed_certificate_timestamp -
key_share -
psk_key_exchange_modes -
supported_versions -
compress_certificate
Named groups 5
-
SecP256r1MLKEM768 -
x25519 -
secp256r1 -
secp384r1 -
secp521r1
Point formats 1
-
uncompressed
Raw JA3 string
771,4866-4867-4865-49196-49195-52393-49200-49199-52392-49162-49161-49172-49171-157-156-53-47-49160-49170-10,0-23-65281-10-11-16-5-13-18-51-45-43-27,4588-29-23-24-25,0Seen in live traffic
- Connections
- 5
- First seen
- 2026-08-23 12:39 UTC
- Last seen
- 2026-08-23 15:01 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.