The output is a diagnostic handoff, not an automated verdict about indexing or ranking.
Useful starting jobs
Parse a bounded log sample, classify redirect and error patterns, inspect pasted response headers and HTML, or check whether an IP value is public, private, or reserved.
- Crawler candidate inventory
- Status and path distribution
- Redirect and directive capture
- Observed, inferred, and unknown handoff
Where this stops
AnalyseSpider can fetch one public HTTP or HTTPS URL through a tightly bounded, SSRF-protected gateway. It does not crawl a site, enter authenticated areas, render JavaScript, query Search Console, or decide canonical selection. Its separate browser-local verifier can compare one logged IP and user-agent claim with dated operator-published ranges; that is request-origin evidence, not proof of indexing, training, or citation.
Client logs can contain personal or confidential data. Minimise the sample before pasting it into any tool, including a local one, and never submit a private or signed URL to the live checker.
A practical sequence
- Reduce the sample to the affected time and route set.
- Inspect local observations and rejected rows.
- Write the strongest supported hypothesis.
- Verify it in the relevant server, crawler, search-platform, or application surface.