t12d520700_3874cc0afe49_d4749a06ddf8
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t12d520700
handshake shape, human-readable
JA4_b
3874cc0afe49
truncated hash of the cipher list
JA4_c
d4749a06ddf8
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.2
- Server name
- server name sent
- Cipher suites offered
- 52
- Extensions offered
- 7
- 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 52
-
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (draft) -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (draft) -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_RC4_128_SHA -
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA -
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (draft) -
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_AES_128_GCM_SHA256 -
TLS_RSA_WITH_AES_256_GCM_SHA384 -
TLS_RSA_WITH_RC4_128_SHA -
TLS_RSA_WITH_RC4_128_MD5 -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_RSA_WITH_AES_256_CBC_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA -
TLS_RSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA -
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA -
TLS_RSA_WITH_3DES_EDE_CBC_SHA -
3 (0x0003) -
8 (0x0008) -
6 (0x0006) -
20 (0x0014) -
17 (0x0011) -
25 (0x0019) -
23 (0x0017) -
50 (0x0032) -
TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA -
18 (0x0012) -
19 (0x0013) -
21 (0x0015) -
56 (0x0038) -
64 (0x0040) -
102 (0x0066) -
106 (0x006a) -
162 (0x00a2) -
163 (0x00a3)
Extensions 7
-
server_name -
status_request -
supported_groups -
ec_point_formats -
signature_algorithms -
renegotiation_info -
heartbeat
Named groups 3
-
secp256r1 -
secp384r1 -
secp521r1
Point formats 1
-
uncompressed
Raw JA3 string
771,52244-52243-49199-49195-49200-49196-49169-49159-49191-49187-49171-49161-49192-49188-49172-49162-52245-158-159-103-107-51-57-156-157-5-4-60-61-47-53-49170-22-10-3-8-6-20-17-25-23-50-49160-18-19-21-56-64-102-106-162-163,0-5-10-11-13-65281-15,23-24-25,0Seen in live traffic
- Connections
- 1
- First seen
- 2026-09-27 15:17 UTC
- Last seen
- 2026-09-27 15:17 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.