t12d9907h2_472763d65e18_f21fe9b79f04
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
t12d9907h2
handshake shape, human-readable
472763d65e18
truncated hash of the cipher list
f21fe9b79f04
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.2
- Server name
- server name sent
- Cipher suites offered
- 99
- Extensions offered
- 7
- ALPN
- h2
Same tool, different options
These 2 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 118
-
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 -
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA -
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_AES_256_GCM_SHA384 -
TLS_RSA_WITH_AES_256_CBC_SHA256 -
TLS_RSA_WITH_AES_256_CBC_SHA -
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 -
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA -
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA -
TLS_RSA_WITH_AES_128_GCM_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 -
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (draft) -
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (draft) -
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (draft) -
165 (0x00a5) -
163 (0x00a3) -
161 (0x00a1) -
106 (0x006a) -
105 (0x0069) -
104 (0x0068) -
56 (0x0038) -
55 (0x0037) -
54 (0x0036) -
TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 -
TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 -
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 -
195 (0x00c3) -
194 (0x00c2) -
193 (0x00c1) -
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA -
135 (0x0087) -
134 (0x0086) -
133 (0x0085) -
49202 (0xc032) -
49198 (0xc02e) -
49194 (0xc02a) -
49190 (0xc026) -
49167 (0xc00f) -
49157 (0xc005) -
49273 (0xc079) -
49269 (0xc075) -
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 -
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA -
164 (0x00a4) -
162 (0x00a2) -
160 (0x00a0) -
64 (0x0040) -
63 (0x003f) -
62 (0x003e) -
50 (0x0032) -
49 (0x0031) -
48 (0x0030) -
TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 -
TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 -
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 -
189 (0x00bd) -
188 (0x00bc) -
187 (0x00bb) -
TLS_DHE_RSA_WITH_SEED_CBC_SHA -
153 (0x0099) -
152 (0x0098) -
151 (0x0097) -
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA -
68 (0x0044) -
67 (0x0043) -
66 (0x0042) -
49201 (0xc031) -
49197 (0xc02d) -
49193 (0xc029) -
49189 (0xc025) -
49166 (0xc00e) -
49156 (0xc004) -
49272 (0xc078) -
49268 (0xc074) -
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 -
TLS_RSA_WITH_SEED_CBC_SHA -
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA -
7 (0x0007) -
TLS_ECDHE_RSA_WITH_RC4_128_SHA -
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA -
102 (0x0066) -
49164 (0xc00c) -
49154 (0xc002) -
TLS_RSA_WITH_RC4_128_SHA -
TLS_RSA_WITH_RC4_128_MD5 -
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA -
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA -
19 (0x0013) -
16 (0x0010) -
13 (0x000d) -
49165 (0xc00d) -
49155 (0xc003) -
TLS_RSA_WITH_3DES_EDE_CBC_SHA -
128 (0x0080) -
129 (0x0081) -
130 (0x0082) -
131 (0x0083) -
99 (0x0063) -
21 (0x0015) -
18 (0x0012) -
TLS_EMPTY_RENEGOTIATION_INFO_SCSV
Extensions 7
-
server_name -
supported_groups -
signature_algorithms -
extended_master_secret -
status_request -
signed_certificate_timestamp -
application_layer_protocol_negotiation
Named groups 7
-
x25519 -
x448 -
secp256r1 -
secp384r1 -
secp521r1 -
ffdhe2048 -
ffdhe3072
Raw JA3 string
771,49200-49196-49192-49188-49172-49162-159-107-57-157-61-53-49199-49195-49191-49187-49171-49161-158-103-51-156-60-47-52393-52392-52394-52244-52243-52245-165-163-161-106-105-104-56-55-54-49271-49267-196-195-194-193-136-135-134-133-49202-49198-49194-49190-49167-49157-49273-49269-192-132-164-162-160-64-63-62-50-49-48-49270-49266-190-189-188-187-154-153-152-151-69-68-67-66-49201-49197-49193-49189-49166-49156-49272-49268-186-150-65-7-49169-49159-102-49164-49154-5-4-49170-49160-22-19-16-13-49165-49155-10-128-129-130-131-99-21-18-255,0-10-13-23-5-18-16,29-30-23-24-25-256-257,Seen in live traffic
- Connections
- 1
- First seen
- 2026-08-25 07:49 UTC
- Last seen
- 2026-08-25 07:49 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.