JA4 t12d8007h2_9cedc1f1428b_20308a74e42f

t12d8007h2_9cedc1f1428b_20308a74e42f

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

What this fingerprint encodes

Transport

TCP

TLS version

TLS 1.2

Server name

server name sent

Cipher suites offered

80

Extensions offered

7

ALPN

h2

Same tool, different options

These 1 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.

• t12d4907ht_730fb1b0ac6a_20308a74e42f

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 80

• 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
• 165 (0x00a5)
• 163 (0x00a3)
• 161 (0x00a1)
• TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
• TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
• 106 (0x006a)
• 105 (0x0069)
• 104 (0x0068)
• TLS_DHE_RSA_WITH_AES_256_CBC_SHA
• 56 (0x0038)
• 55 (0x0037)
• 54 (0x0036)
• 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)
• 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_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
• 164 (0x00a4)
• 162 (0x00a2)
• 160 (0x00a0)
• TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
• TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
• 64 (0x0040)
• 63 (0x003f)
• 62 (0x003e)
• TLS_DHE_RSA_WITH_AES_128_CBC_SHA
• 50 (0x0032)
• 49 (0x0031)
• 48 (0x0030)
• 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)
• 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
• 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
• 7 (0x0007)
• TLS_EMPTY_RENEGOTIATION_INFO_SCSV

Extensions 7

• server_name
• ec_point_formats
• supported_groups
• signature_algorithms
• heartbeat
• application_layer_protocol_negotiation
• padding

Named groups 4

• secp256r1
• secp521r1
• secp384r1
• 22 (0x0016)

Point formats 3

• uncompressed
• ansiX962_compressed_prime
• ansiX962_compressed_char2

771,49200-49196-49192-49188-49172-49162-165-163-161-159-107-106-105-104-57-56-55-54-136-135-134-133-49202-49198-49194-49190-49167-49157-157-61-53-132-49199-49195-49191-49187-49171-49161-164-162-160-158-103-64-63-62-51-50-49-48-154-153-152-151-69-68-67-66-49201-49197-49193-49189-49166-49156-156-60-47-150-65-49170-49160-22-19-16-13-49165-49155-10-7-255,0-11-10-13-15-16-21,23-25-24-22,0-1-2

Seen in live traffic

Connections

1

First seen

2026-08-26 04:24 UTC

Last seen

2026-08-26 04:24 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.