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JA4 t11d990300_896f75462ccc_33a13ba74d1c

Scanner — observed in live traffic

Scanner

t11d990300_896f75462ccc_33a13ba74d1c

Legacy TLS client — inferred from the JA4 handshake shape.

What this fingerprint encodes

JA4_a t11d990300 handshake shape, human-readable
JA4_b 896f75462ccc truncated hash of the cipher list
JA4_c 33a13ba74d1c truncated hash of extensions + signature algorithms
Transport
TCP
TLS version
TLS 1.1
Server name
server name sent
Cipher suites offered
99
Extensions offered
3
ALPN
none offered

Same tool, different options

These 48 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 1.1

Cipher suites 186

Extensions 3

Named groups 37

Point formats 3

Raw JA3 string
770,0-11-12-13-17-18-19-23-24-25-26-27-30-31-32-33-34-35-36-37-38-39-40-41-42-43-44-45-46-48-50-52-54-56-58-62-64-66-68-70-99-101-102-104-106-108-109-133-135-137-138-139-140-141-142-143-144-145-146-147-148-149-151-153-155-162-163-164-165-166-167-168-169-170-171-172-173-174-175-176-177-178-179-180-181-182-183-184-185-187-189-191-193-195-197-49173-49174-49175-49176-49177-49178-49180-49181-49183-49184-49186-49203-49204-49205-49206-49207-49208-49209-49210-49211-49214-49215-49218-49219-49222-49223-49238-49239-49240-49241-49242-49243-49252-49253-49254-49255-49256-49257-49258-49259-49260-49261-49262-49263-49264-49265-49280-49281-49282-49283-49284-49285-49294-49295-49296-49297-49298-49299-49300-49301-49302-49303-49304-49305-49306-49307-49316-49317-49318-49319-49320-49321-49322-49323-52395-52396-52397-52398-53249-53250-53251-53253-58390-58391-58392-58393-58394-58395-58396-58397-255,0-10-11,1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28-29-30-256-257-258-259-260-65281-65282,0-1-2

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.