I need a hep with a Pretty URL

I know there is a Pretty URL option but I don’t want this
my site

I want it show 404 page when the url with html extension or slash For example :
保良局甲子何玉清中學 Can access
保良局甲子何玉清中學 404
保良局甲子何玉清中學 404

@PLK1984-003 I don’t believe you can do this with standard Netlify redirects.

You may be able to do so by implementing your own custom edge function.

See the edge function documentation here:
https://docs.netlify.com/edge-functions/overview/

Here’s a recent example from a community member where they wanted to return a 404 for requests to any route containing .php.

You may be able to quickly adapt it to match your requirements.