"Can I Take Over XYZ?" - A List Of Services And How To Claim (Sub)Domains With Dangling DNS Records

What is asubdomain takeover? Subdomain takeover vulnerabilities occur when a subdomain subdomain.example.com is pointing to a service e.g. GitHub pages, Heroku, etc. that has been removed or deleted. This allows an attacker to set up a page on the service that was being used and point their page ...