t12d340200_280581216cf5_e4b0759bffdd
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t12d340200
handshake shape, human-readable
JA4_b
280581216cf5
truncated hash of the cipher list
JA4_c
e4b0759bffdd
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.2
- Server name
- server name sent
- Cipher suites offered
- 34
- Extensions offered
- 2
- 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 34
-
TLS_RSA_WITH_RC4_128_MD5 -
TLS_RSA_WITH_RC4_128_SHA -
TLS_RSA_WITH_3DES_EDE_CBC_SHA -
13 (0x000d) -
16 (0x0010) -
19 (0x0013) -
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA -
TLS_RSA_WITH_AES_128_CBC_SHA -
48 (0x0030) -
49 (0x0031) -
50 (0x0032) -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA -
TLS_RSA_WITH_AES_256_CBC_SHA -
54 (0x0036) -
55 (0x0037) -
56 (0x0038) -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_RSA_WITH_AES_256_CBC_SHA256 -
62 (0x003e) -
63 (0x003f) -
64 (0x0040) -
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA -
68 (0x0044) -
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA -
102 (0x0066) -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 -
104 (0x0068) -
105 (0x0069) -
106 (0x006a) -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 -
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA -
135 (0x0087) -
TLS_EMPTY_RENEGOTIATION_INFO_SCSV
Extensions 2
-
server_name -
signature_algorithms
Raw JA3 string
771,4-5-10-13-16-19-22-47-48-49-50-51-53-54-55-56-57-60-61-62-63-64-65-68-69-102-103-104-105-106-107-132-135-255,0-13,,Seen in live traffic
- Connections
- 1
- First seen
- 2026-08-23 18:31 UTC
- Last seen
- 2026-08-23 18:31 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.