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Understand a log sample

Check request patterns, status codes and declared crawlers in an Apache or Nginx Common / Combined access log.

Loading the local analyzer. If this message remains, the required scripts did not load; do not paste a log.

1. Choose your sample

Browser only

No compressed archives, IIS W3C, JSON or custom columns. A filename extension does not guarantee a supported format.

Selecting a file clears pasted text. Editing pasted text clears the file selection.

Supported record shape

Common: remote host, ident, user, timestamp with numeric timezone, quoted request, final status, response bytes. Combined adds quoted referrer and user agent. The whole line must match; extra columns are rejected.

192.0.2.10 - - [18/Sep/2026:10:00:00 +0000] "GET /example/ HTTP/1.1" 200 512

Common records have no crawler evidence. A user agent is a declaration, not a verified identity. Results are observations of the supplied sample, not whole-site traffic, indexing or Google's crawl-budget allocation.

No sample selected.