User-Agent

Mozilla/5.0 (compatible; Googlebot/2.1)

first seen 2026-08-10 01:35 · last seen 2026-08-10 01:35 · JSON

Bot verification

This User-Agent declares a bot or user-triggered fetcher. Each connection's IP is checked at ingest against the verification channels the operator publishes — its crawler IP ranges and, where documented, forward-confirmed reverse DNS. A claim either channel confirms is identified; one confirmed by neither — outside the ranges, inside a different operator's, or failing the DNS check — is an impersonation signal. Meta publishes its network rather than crawler ranges, so its identified claims are network-confirmed and its unconfirmed misses are unverified claims, not proven spoofs. bot-claim anomalies →

claims	identified	unconfirmed miss	wrong operator	unconfirmed rate
Googlebot	0	2	0	100.0%

Decomposed attributes

Browser / client	`Googlebot 2.1`
Device class	`bot`
Note	`inferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above`

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprint	co-occurrences
`t13d311100_e8f1e7e78f70_d41ae481755e` Match?Exact match in Thumbprint's published controlled catalog captures: rust-hyper 1.11.0, rust-hyper 1.11.1, rust-hyper 1.10.1.The fingerprint page shows the full measured match list. More on the catalog.	2

HTTP request (JA4H)

fingerprint	co-occurrences
`ge11nn040000_5b1e8b5f4d2d_000000000000_000000000000`	2

TCP SYN (p0f)

fingerprint	co-occurrences
`4:38+26:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:0`	2

TCP SYN (JA4T)

fingerprint	co-occurrences
`64240_2-4-8-1-3_1460_10`	2

Country

fingerprint	co-occurrences
`LT` · Lithuania	2

Network (ASN)

fingerprint	co-occurrences
`AS43700` · UAB Consilium Optimum	2