JA4 t13i270800_fa4239e4ca25_97f8aa674fd9

t13i270800_fa4239e4ca25_97f8aa674fd9

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

What this fingerprint encodes

Transport

TCP

TLS version

TLS 1.3

Server name

no server name (IP literal)

Cipher suites offered

27

Extensions offered

8

ALPN

none offered

Same tool, different options

These 4 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.

• t13i030800_55b375c5d22e_97f8aa674fd9
• t13i250800_b78ed14e2fd0_97f8aa674fd9
• t13i190800_9dc949149365_97f8aa674fd9
• t13i260800_3309cf098094_97f8aa674fd9

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 27

• TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
• TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
• TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
• TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
• TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
• TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
• TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
• TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
• TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
• TLS_RSA_WITH_AES_128_GCM_SHA256
• TLS_RSA_WITH_AES_256_GCM_SHA384
• TLS_RSA_WITH_AES_128_CBC_SHA
• TLS_RSA_WITH_AES_256_CBC_SHA
• TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
• TLS_RSA_WITH_3DES_EDE_CBC_SHA
• 50 (0x0032)
• 19 (0x0013)
• 56 (0x0038)
• 64 (0x0040)
• 102 (0x0066)
• 106 (0x006a)
• 162 (0x00a2)
• 163 (0x00a3)
• TLS_AES_128_GCM_SHA256
• TLS_CHACHA20_POLY1305_SHA256
• TLS_AES_256_GCM_SHA384

Extensions 8

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

Named groups 4

• x25519
• secp256r1
• secp384r1
• secp521r1

Point formats 1

• uncompressed

771,49199-49200-49195-49196-52392-52393-49171-49161-49172-49162-156-157-47-53-49170-10-50-19-56-64-102-106-162-163-4865-4867-4866,5-10-11-13-65281-18-43-51,29-23-24-25,0

Seen in live traffic

Connections

1

First seen

2026-09-13 02:45 UTC

Last seen

2026-09-13 02:45 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.