JA4 t12i050400_34c2dc17cea7_f0b8f5931c7e

t12i050400_34c2dc17cea7_f0b8f5931c7e

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

5

Extensions offered

4

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 5

• TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
• TLS_RSA_WITH_AES_128_GCM_SHA256
• TLS_RSA_WITH_AES_128_CBC_SHA

Extensions 4

• supported_groups
• ec_point_formats
• signature_algorithms
• renegotiation_info

Named groups 25

• secp256r1
• 1 (0x0001)
• 3 (0x0003)
• 19 (0x0013)
• 21 (0x0015)
• 6 (0x0006)
• 7 (0x0007)
• 9 (0x0009)
• 10 (0x000a)
• secp384r1
• 11 (0x000b)
• 12 (0x000c)
• secp521r1
• 13 (0x000d)
• 14 (0x000e)
• 15 (0x000f)
• 16 (0x0010)
• 17 (0x0011)
• 2 (0x0002)
• 18 (0x0012)
• 4 (0x0004)
• 5 (0x0005)
• 20 (0x0014)
• 8 (0x0008)
• 22 (0x0016)

Point formats 1

• uncompressed

771,49195-49199-49171-156-47,10-11-13-65281,23-1-3-19-21-6-7-9-10-24-11-12-25-13-14-15-16-17-2-18-4-5-20-8-22,0

Seen in live traffic

Connections

1

First seen

2026-09-19 05:00 UTC

Last seen

2026-09-19 05:00 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.