ClaudeBot
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.
| observations | sources | legit | spoofed | spoof rate |
|---|---|---|---|---|
| 474 | 103 | 65 | 38 | 36.9% |
Fingerprints presented by confirmed traffic
The highest-volume fingerprints the operator's own traffic runs, per signal — claims confirmed via operator-published channels. A Match pill marks an exact match against a controlled capture — an association with known stacks, not an identity verdict: unrelated clients built on the same stack can legitimately share a fingerprint.
TLS ClientHello (JA4)
| fingerprint | observations |
|---|---|
t13d1011h2_61a7ad8aa9b6_3fcd1a44f3e3 Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.12.28.The fingerprint page shows the full measured match list. More on the catalog. |
281 |
HTTP request (JA4H)
| fingerprint | observations |
|---|---|
ge20nn030000_80b089f68b8e_000000000000_000000000000 |
281 |
HTTP/2 frames (Akamai)
| fingerprint | observations |
|---|---|
2:0;4:2097152;5:16384;6:16384|5177345|0|m,s,a,p Match?Exact match in Thumbprint's published controlled catalog captures: rust-reqwest 0.13.4, rust-reqwest 0.12.28, rust-reqwest 0.13.5, +3 more.The fingerprint page shows the full measured match list. More on the catalog. |
281 |
TCP SYN (JA4T)
| fingerprint | observations |
|---|---|
62727_2-4-8-1-3_1460_7 |
281 |
TCP SYN (p0f)
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)
| fingerprint | observations |
|---|---|
t13d131200_f57a46bbacb6_9249cab70c77 |
35 |
t13d131300_f57a46bbacb6_1bd98dace775 |
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 |
HTTP request (JA4H)
| fingerprint | observations |
|---|---|
ge11nr05enus_f3bb7aa45ec4_000000000000_000000000000 |
36 |
ge11nn05enus_f3bb7aa45ec4_000000000000_000000000000 |
6 |
ge11nr030000_cd680697de12_000000000000_000000000000 |
2 |
ge11nr060000_6f1c3d56a901_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 |
ge11nn040000_e1d2031bdfea_000000000000_000000000000 |
1 |
ge11nn060000_6f1c3d56a901_000000000000_000000000000 |
1 |
ge11nr040000_e1d2031bdfea_000000000000_000000000000 |
1 |
ge20nn020000_fb4f949fd323_000000000000_000000000000 |
1 |
HTTP/2 frames (Akamai)
| fingerprint | observations |
|---|---|
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)
| fingerprint | observations |
|---|---|
42600_2-4-8-1-3_1420_9 |
47 |
65320_2-4-8-1-3_1420_10 |
4 |
64620_2-4-8-1-3_1436_7 |
2 |
64240_2-4-8-1-3_1460_7 |
1 |