What you’re talking about is commonly referred to as domain forwarding. It isn’t done purely through DNS records. Most domain registrars allow forwarding to specific URLs and the interfaces are different for each one.
So you don’t need an IP address for this, just the destination URL and pointers to the documentation for common registrars.
Here’s a Google search that might help you:
https://www.google.com/search?q=forward+a+domain+to+webpage&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari