- Normalize: https, www or bare host, double slashes and index files,
trailing slash add/remove, optional ASCII lowercasing (defaults change
nothing but scheme, slashes and index files)
- strict URLs through signpost MatchPath: a path that names a record
without being its address 301s to the record's address
- resolve runs normalisation, redirects, strict URLs, then SEO; the
location is the final address, so a visitor makes one hop
- P1 warns when a record's canonical URL redirects
- POST /_seo/api/v1/notfound with the golem15.seo.notfound_token bearer
(constant-time, off when unset), URL and referer caps, a row cap with
an hourly warning, throttle bucket seo-notfound
- golem15.seo.notfound list by hits with Resolved rows, a preview with the
resolved hint, a prompted 301 and a 410 record action, a bulk 410 that
refuses a selection with a covered address
- every /_seo/api/v1 answer carries X-Robots-Tag: noindex
