Count Script Tags in Page in JavaScript

Hi! I am pretty new to doing anything with HTML, CSS, and JS, but I'm doing a project where I am classifying and rating websites by analyzing their HTML in python. What would be some things that I could use to tell how well a website is put together by looking at its HTML?

For example, I am looking at the number of script tags a website has and will probably use that number in my analysis.

I am open to any answers, suggestions or questions. Tell me what you think.