What is SEO Audit?

SEO Audit is a set of activities which aim to create a report about how to improve your website in terms of Search Engine Optimization.

This includes:

Checking the HTML, PHP, CSS and JS code and looking for issues. This includes both semantics and correctness.
Reading all the content and reviewing the link structure, keywords
Reviewing the site map
etc…

The result of SEO Audit is a detailed report. On the basis of this report any other Search Engine Optimization actions will take place.