Question

So I striped all my html extensions and can now visit both the one with the extension and the one without it.

Does google see having /example.php and /example as duplicate content now?

How would I make it so only the file without the html extension shows?

my code:

    RewriteEngine on 
    RewriteCond %{REQUEST_FILENAME} !-d 
    RewriteCond %{REQUEST_FILENAME}\.html -f 
    RewriteRule ^(.*)$ $1.html

Answer 1

The whole concept of hiding existing files but still delivering them is kind of weird, but technically it would work like the following

RewriteEngine on 

RewriteRule ^(.*)\.html$ $1 [R=301,L]

RewriteCond %{REQUEST_FILENAME} !-d 
RewriteCond %{REQUEST_FILENAME}\.html -f 
RewriteRule ^(.*)$ $1.html

This does a redirect from /example.html to /example and returns a http status code 301 (“Moved permanently”). This tells e.g. google that the content of this page has moved.