edit or change HTTP Test Page

[masrnet]

Hi everyone

how to edit or change HTTP Test Page (the default page for any domain or subdomains)
and where is the path for it

please note the domain is not added yet from the cwp control panel , 
it just refere to cwp shared IP (A record)

[Starburst]

https://wiki.centos-webpanel.com/how-to-change-default-website