redirect to "domain.com" when not using https

[arjena]

Last year I used Letsencrypt to add some security to all of my domains. It worked, it renewes itself when needed so I forgot all about it. This works fine for most of my domains (I have about four in total), but by chance (clicked on an old link from before the ssl upgrade) I found that when I type http://www.werpdesign.nl in stead of https:// I am redirected to a site called "domain.com". For as far as I can tell all settings are identical to other domains (i.e. lastpost.tv) where I don't have this problem.
Can anybody point me in the direction where to start troubleshooting? And how can my domain be redirected to another domain whom I have nothing to do with??

Edit: PS, domain.com is in this case not a general placeholder but the actual site located at domain.com

 

[arjena]

Oops, solved it... In the .htaccess file there was a redirect to force the use of https. But somebody copied the example file and forgot to replace "domain.com" with werpdesign.nl... So domain.com is not to blame, although whoever registered that name is pure evil genius of course...