Why does disabling Pretty URLs not disable Pretty URLs?

[luke]

Hi, @miles. This topic is a duplicate of this topic you created recently:

Disabled Pretty URLS but .html-less links continue to work and be indexed by search engines

I have disabled Pretty URLs for unruffled-sinoussi-fbd7d8.netlify.app (primary domain is tinyapps.org), but .html-less continue to work and be indexed by search engines, causing duplicates to appear in search results, e.g., this Kagi Search returns two results for the same page, one with the .html extension and one without. Is it possible to return a 404 or 301 for such pretty links? If not, what is the best way to handle this while maintaining normal .html extensions? Thank you.

Please do not create duplicate topics as this makes the support forum less useful to others, it creates unnecessary work for our support team, and it just slows down our responses.

About the upper bounds for redirect counts, there is nothing documented officially. I would recommend, for performance reasons, to limit the number of redirect per site to 2000 or fewer.