Problem: website keeps loading the wrong site or can not find site. Could be that the DNS is still wrong in cache.

Get to Cache locations & Flush DNS

1. Browser
   Firefox: https://support.mozilla.org/en-US/kb/how-clear-firefox-cache
2. OS
   Open iTerm or Terminal and check current IP.
dig <website.ext> +nostats +nocomments +nocmd
   If incorrect flush OS DNS Cache.
   sudo killall -HUP mDNSResponder
3. DNS-server on network (f.i. PiHole)
   SSH into your Raspberry with Pihole.
   pihole dnsrestart

And that should fix your problems…..

Handy Tools

DNS Checker
Dig