- Plesk for Linux
- Test domain with censys.io returns real IP address despite the domain being behind CloudFlare
- Domain is set as default domain for one of the server's IP addresses
Domain + IP address pair is saved censys.io DNS history database.
Сrawlers (e.g. censys.io) store the information about mapping "IP address - domain name" and return this as user requests the domain info.
To fix this switch domains to the new IP addresses and make sure the old IP no longer points to the same server according to steps in the following article: