JA4 t12i200800_0bf03fa604e3_c3f51f8b1329

t12i200800_0bf03fa604e3_c3f51f8b1329

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

20

Extensions offered

8

ALPN

none offered

Same tool, different options

These 1 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.

• t11i200800_0bf03fa604e3_c3f51f8b1329

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_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
• TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
• TLS_DHE_RSA_WITH_AES_256_CBC_SHA
• TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
• TLS_RSA_WITH_AES_256_CBC_SHA
• TLS_RSA_WITH_AES_256_CBC_SHA256
• TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
• TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
• TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
• TLS_ECDHE_RSA_WITH_RC4_128_SHA
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
• TLS_DHE_RSA_WITH_AES_128_CBC_SHA
• TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
• 50 (0x0032)
• TLS_RSA_WITH_RC4_128_SHA
• TLS_RSA_WITH_RC4_128_MD5
• TLS_RSA_WITH_AES_128_CBC_SHA
• TLS_RSA_WITH_AES_128_CBC_SHA256
• TLS_RSA_WITH_3DES_EDE_CBC_SHA

Extensions 8

• 61184 (0xef00)
• renegotiation_info
• supported_groups
• ec_point_formats
• session_ticket
• 13172 (0x3374)
• 30031 (0x754f)
• status_request

Named groups 3

• secp256r1
• secp384r1
• secp521r1

Point formats 1

• uncompressed

771,49162-49172-57-107-53-61-49159-49161-49187-49169-49171-49191-51-103-50-5-4-47-60-10,61184-65281-10-11-35-13172-30031-5,23-24-25,0

Seen in live traffic

Connections

2

First seen

2026-11-11 02:22 UTC

Last seen

2026-11-11 06:23 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.