[Help] Need a Script/Sofware to Extract Domain Names from a Webpage.

Hello Everyone!

I am Facing a Problem and I am trying to find a Solution for it From past 2 days but I am Having no Luck.

I need to Parse/Extract/Harvest all the Domain names present on webpage and Collect them in a CSV/Text File.

If anyone can Help me/ Provide me a Solution I'll highly appreciate it.

-Thanks and Regards
Sid