How do you go about? Pretty simple. Define criteria, run Chrome Headless against it, and check results. Jest is a nice add on in your toolchain!

As there are many use cases and a million criteria to test agains, coming up with a one size fits all solution is difficult. Katalon is perhaps closest to it, but it has many shortcomings.

Some food for thought. Rely more on screenshots and compare them with what you expect. I'm writing a simple downtime checker as we speak and one of the key features is very basic analytics that compares screenshot to blank screens, generic error pages, parked domain landing pages, etc.