JA4 t12d430700_1ce71f0edbb1_85fd39bfcaa8

t12d430700_1ce71f0edbb1_85fd39bfcaa8

Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.

What this fingerprint encodes

Transport

TCP

TLS version

TLS 1.2

Server name

server name sent

Cipher suites offered

43

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 43

• 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_DHE_RSA_WITH_AES_256_GCM_SHA384
• 163 (0x00a3)
• TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
• 162 (0x00a2)
• TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
• TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
• TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
• TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
• 106 (0x006a)
• TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
• 64 (0x0040)
• 49198 (0xc02e)
• 49202 (0xc032)
• 49197 (0xc02d)
• 49201 (0xc031)
• 49190 (0xc026)
• 49194 (0xc02a)
• 49189 (0xc025)
• 49193 (0xc029)
• TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
• TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
• TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
• TLS_DHE_RSA_WITH_AES_256_CBC_SHA
• 56 (0x0038)
• TLS_DHE_RSA_WITH_AES_128_CBC_SHA
• 50 (0x0032)
• 49157 (0xc005)
• 49167 (0xc00f)
• 49156 (0xc004)
• 49166 (0xc00e)
• 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
• TLS_EMPTY_RENEGOTIATION_INFO_SCSV

Extensions 7

• server_name
• supported_groups
• ec_point_formats
• signature_algorithms
• signature_algorithms_cert
• extended_master_secret
• supported_versions

Named groups 8

• secp256r1
• secp384r1
• secp521r1
• ffdhe2048
• ffdhe3072
• ffdhe4096
• 259 (0x0103)
• 260 (0x0104)

Point formats 1

• uncompressed

771,49196-49195-49200-49199-159-163-158-162-49188-49192-49187-49191-107-106-103-64-49198-49202-49197-49201-49190-49194-49189-49193-49162-49172-49161-49171-57-56-51-50-49157-49167-49156-49166-157-156-61-60-53-47-255,0-10-11-13-50-23-43,23-24-25-256-257-258-259-260,0

Seen in live traffic

Connections

1

First seen

2026-08-31 15:24 UTC

Last seen

2026-08-31 15:24 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.