t12d660600_d16616bd43e4_1c493824401a
Completed a TLS handshake but never an HTTP request, so no User-Agent was ever presented.
What this fingerprint encodes
JA4_a
t12d660600
handshake shape, human-readable
JA4_b
d16616bd43e4
truncated hash of the cipher list
JA4_c
1c493824401a
truncated hash of extensions + signature algorithms
- Transport
- TCP
- TLS version
- TLS 1.2
- Server name
- server name sent
- Cipher suites offered
- 66
- Extensions offered
- 6
- 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 66
-
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 -
49186 (0xc022) -
49185 (0xc021) -
163 (0x00a3) -
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 -
106 (0x006a) -
TLS_DHE_RSA_WITH_AES_256_CBC_SHA -
56 (0x0038) -
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA -
135 (0x0087) -
49202 (0xc032) -
49198 (0xc02e) -
49194 (0xc02a) -
49190 (0xc026) -
49167 (0xc00f) -
49157 (0xc005) -
TLS_RSA_WITH_AES_256_GCM_SHA384 -
TLS_RSA_WITH_AES_256_CBC_SHA256 -
TLS_RSA_WITH_AES_256_CBC_SHA -
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA -
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA -
TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA -
49180 (0xc01c) -
49179 (0xc01b) -
TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA -
19 (0x0013) -
49165 (0xc00d) -
49155 (0xc003) -
TLS_RSA_WITH_3DES_EDE_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 -
49183 (0xc01f) -
49182 (0xc01e) -
162 (0x00a2) -
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 -
64 (0x0040) -
TLS_DHE_RSA_WITH_AES_128_CBC_SHA -
50 (0x0032) -
TLS_DHE_RSA_WITH_SEED_CBC_SHA -
153 (0x0099) -
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA -
68 (0x0044) -
49201 (0xc031) -
49197 (0xc02d) -
49193 (0xc029) -
49189 (0xc025) -
49166 (0xc00e) -
49156 (0xc004) -
TLS_RSA_WITH_AES_128_GCM_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA256 -
TLS_RSA_WITH_AES_128_CBC_SHA -
TLS_RSA_WITH_SEED_CBC_SHA -
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA -
7 (0x0007) -
TLS_EMPTY_RENEGOTIATION_INFO_SCSV
Extensions 6
-
server_name -
ec_point_formats -
supported_groups -
signature_algorithms -
heartbeat -
13172 (0x3374)
Named groups 25
-
14 (0x000e) -
13 (0x000d) -
secp521r1 -
11 (0x000b) -
12 (0x000c) -
secp384r1 -
9 (0x0009) -
10 (0x000a) -
22 (0x0016) -
secp256r1 -
8 (0x0008) -
6 (0x0006) -
7 (0x0007) -
20 (0x0014) -
21 (0x0015) -
4 (0x0004) -
5 (0x0005) -
18 (0x0012) -
19 (0x0013) -
1 (0x0001) -
2 (0x0002) -
3 (0x0003) -
15 (0x000f) -
16 (0x0010) -
17 (0x0011)
Point formats 3
-
uncompressed -
ansiX962_compressed_prime -
ansiX962_compressed_char2
Raw JA3 string
771,49200-49196-49192-49188-49172-49162-49186-49185-163-159-107-106-57-56-136-135-49202-49198-49194-49190-49167-49157-157-61-53-132-49170-49160-49180-49179-22-19-49165-49155-10-49199-49195-49191-49187-49171-49161-49183-49182-162-158-103-64-51-50-154-153-69-68-49201-49197-49193-49189-49166-49156-156-60-47-150-65-7-255,0-11-10-13-15-13172,14-13-25-11-12-24-9-10-22-23-8-6-7-20-21-4-5-18-19-1-2-3-15-16-17,0-1-2Seen in live traffic
- Connections
- 1
- First seen
- 2026-08-29 10:50 UTC
- Last seen
- 2026-08-29 10:50 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.