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JA4 t13d110700_61af50b1aabb_13d7658266da

Unclassified — observed in live traffic

Unclassified

t13d110700_61af50b1aabb_13d7658266da

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

What this fingerprint encodes

JA4_a t13d110700 handshake shape, human-readable
JA4_b 61af50b1aabb truncated hash of the cipher list
JA4_c 13d7658266da truncated hash of extensions + signature algorithms
Transport
TCP
TLS version
TLS 1.3
Server name
server name sent
Cipher suites offered
11
Extensions offered
7
ALPN
none offered

Same tool, different options

These 5 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.

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 11

Extensions 7

Named groups 174

Raw JA3 string
771,49411-49412-49413-49414-4865-4867-4868-4869-198-199-255,0-40-51-43-50-10-13,1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28-29-30-34-35-36-37-38-39-40-41-256-257-258-259-260-512-513-514-515-516-517-518-519-527-528-529-547-548-553-554-555-556-557-558-568-570-571-572-573-574-575-576-577-578-579-580-581-582-4587-4588-4589-12032-12033-12034-12035-12036-12037-12038-12039-12047-12048-12049-12067-12068-12070-12072-12073-12074-12075-12076-12077-12078-12087-12088-12089-12090-12091-12092-12093-12094-12095-12096-12097-12098-12099-12100-12101-12102-12107-12108-12109-12110-12160-12161-12162-12163-12176-12201-12202-12204-12205-12206-12207-12208-12209-12214-12215-16696-25497-25498-65024-65025-65026-65027-65028-65029-65030-65031-65032-65033-65034-65035-65036-65037-65038-65039-65043-65044-65045-65046-65047-65048-65049-65050-65051-65052-65053-65054-65055-65056-65057-65058-65072-65073-65281-65282,

Seen in live traffic

Connections
1
First seen
2026-10-20 22:31 UTC
Last seen
2026-10-20 22:31 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.