JA4 t12i070700_be10c564b140_ac0d2f4ec206

t12i070700_be10c564b140_ac0d2f4ec206

Probe (no SNI, no ALPN) — inferred from the JA4 handshake shape.

What this fingerprint encodes

Transport

TCP

TLS version

TLS 1.2

Server name

no server name (IP literal)

Cipher suites offered

7

Extensions offered

7

ALPN

none offered

Same tool, different options

These 2 other fingerprints share this one's JA4_c — the extension and signature-algorithm hash. A client that keeps its extension set constant while varying its cipher list produces exactly this pattern, which is what a scanner iterating cipher suites looks like. A JA3 cannot show you this: its single MD5 collapses ciphers and extensions together, so every variation looks like an unrelated client.

• t12i160700_8cdfa2d4673b_ac0d2f4ec206
• t12i230700_31bea9ec6298_ac0d2f4ec206

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 7

• TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
• TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
• TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
• TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
• TLS_DHE_RSA_WITH_AES_128_CCM

Extensions 7

• status_request
• supported_groups
• ec_point_formats
• signature_algorithms
• renegotiation_info
• signed_certificate_timestamp
• supported_versions

Named groups 4

• x25519
• secp256r1
• secp384r1
• secp521r1

Point formats 1

• uncompressed

771,49195-49199-49196-49200-52393-52392-49326,5-10-11-13-65281-18-43,29-23-24-25,0

Seen in live traffic

Connections

1

First seen

2026-09-27 16:39 UTC

Last seen

2026-09-27 16:39 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.