CCBot

The wire fingerprints traffic claiming to be this crawler presented, split by whether a channel the operator publishes for verification — its IP ranges or forward-confirmed reverse DNS — confirmed the claim.

Claims in window

Same adjudication as the stats page: a claim confirmed by either channel the operator publishes — its IP ranges or forward-confirmed reverse DNS — is legit; one confirmed by neither is spoofed. Operators differ in which channels they offer, and either alone fully identifies. Sources count distinct clients, not traffic. Fingerprint windows below are day-granular, like sources.

observationssourceslegitspoofedspoof rate
2915015100.0%

Fingerprints presented by unconfirmed claims

The impostor inventory: the highest-volume fingerprints wearing this operator's User-Agent that no operator-published channel confirms, per signal. A Match pill here shows known clients measured producing the same fingerprint an impostor presents.

TLS ClientHello (JA4)

fingerprintobservations
t13d1011h1_61a7ad8aa9b6_3a8073edd8ef 12
t13d1516h2_8daaf6152771_d8a2da3f94cd Match?Exact match in Thumbprint's published controlled catalog captures: chromium 149.0.7827.102, chrome 149.0.7827.102, chrome 149.0.7827.156, +25 more.The fingerprint page shows the full measured match list. More on the catalog. 4
t13d131000_f57a46bbacb6_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog. 3
t13d131300_f57a46bbacb6_1bd98dace775 1

HTTP request (JA4H)

fingerprintobservations
ge11nn040000_8b1ed2202073_000000000000_000000000000 7
ge11nr040000_8b1ed2202073_000000000000_000000000000 5
ge11nr030000_cd680697de12_000000000000_000000000000 2
ge20nn050000_857b5fa3405d_000000000000_000000000000 2
ge11nn030000_cd680697de12_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.5, powershell 7.6.4, go-net/http 1.27.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog. 1
ge11nr05enus_f3bb7aa45ec4_000000000000_000000000000 1
ge20nn020000_fb4f949fd323_000000000000_000000000000 1
ge20nn050000_7e80a5f53adf_000000000000_000000000000 1

HTTP/2 frames (Akamai)

fingerprintobservations
2:0;4:4194304;5:16384;6:262144;1:65536|1073741824|0|a,m,p,s 3
2:0;4:4194304;5:16384;6:10485760|1073741824|0|a,m,p,s Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.8, go-net/http 1.26.7, +6 more.The fingerprint page shows the full measured match list. More on the catalog. 1

TCP SYN (JA4T)

fingerprintobservations
64240_2-4-8-1-3_1460_7 12
65320_2-4-8-1-3_1420_10 4
42340_2-4-8-1-3_1460_10 2
42600_2-4-8-1-3_1420_9 1
64620_2-4-8-1-3_1436_7 1

TCP SYN (p0f)

fingerprintobservations
4:58+6:0:1420:mss*46,10:mss,sok,ts,nop,ws:df,id+:0 4
4:48+16:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 3
4:47+17:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 2
4:49+15:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 2
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 2
4:52+12:0:1460:mss*29,10:mss,sok,ts,nop,ws:df,id+:0 2
4:52+12:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 2
4:54+10:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:0 1
4:57+7:0:1436:mss*45,7:mss,sok,ts,nop,ws:df,id+:0 1
4:58+6:0:1420:mss*30,9:mss,sok,ts,nop,ws:df,id+:0 1