Redirect www to non www

You can use the option here:

https://redirection.me/support/site-options/

Used Force www or remove www option, but sadly it not helped. Is there something, what must be setup on server?

Did you also update your WordPress URL setting, like it suggests?

Yes, website is working with non www, but with www all pages have error – not 404, but hosting showing unexisting content, so even theme files are not loaded

Can you post a link? You may need additional server configuration

non www
www

• This reply was modified 1 year, 11 months ago by koupmi.

Sure, you’ll need to configure your server. It’s not passing www requests to your site. You’ll also need to configure your SSL properly otherwise browsers won’t even try. This is maybe something best discussed with your hosting provider.