What parameters are most important when auditing a site?

Question

Search Engine Optimization

Tell me or advise how to conduct an audit yourself, analyze the site, what parameters or points should you pay attention to?

Answer 1

parameters for analysis and their priority is determined individually depending on the nature of the site and the purposes for which the site was created.
without introductory information to analyze and make recommendations it is to write with a pitchfork on the water.

Answer 2

Yandex metrica + webvisor to understand how people walk around the site, where they click, where they leave