Start with search evidence
Search systems can discover both .html and extensionless versions of the same page, so canonical URLs, sitemaps, and internal links need one preferred entry.
For agent workflow pages, about pages, and English about pages that already receive discovery, keep canonical tags, redirects, and internal links aligned to extensionless URLs.
Visibility is not demand
The useful question is not whether the page appeared somewhere; it is whether the search term, page promise, and next action fit the same reader job.
Check the page path
- Check sitemap, canonical, internal links, and redirects so searchers and readers land on the same preferred URL
- Keep the test narrow: one priority page with clear topic, source links, internal links, and a conversion action
What still needs proof
Split entries dilute search evidence and send readers through legacy paths. Keep the original source open so the announcement, the evidence, and this site's interpretation stay separate.