How to test if a website is life and contains a specific HMTL?

The idea is to run daily tests of a website to test not only that the website is up and running, but also that specific features are working and there's nothing broken. So if the URL contains certain HTML, the test will be successful. If not, the test won't be successful and I will get an email notification. How can this be achieved?

@dieguraa Have you tried any uptime monitoring service like betterstack

https://betterstack.com/

And which feature you want to check could you upload the video for the same

Thanks for the advice. I'll try a monitoring service as suggested. Thank you

Thanks for the advice. I'll try a monitoring service as suggested. Thank you