Some critical elements of a website need to be tested and checked before and after the website goes live. Typically, SEO audit happens once the SEO processes have been implemented. But there is pre-SEO audit process which is very critical too!
Some Facts on SEO; My over a decade long experience and involvement with SEO tells me that:
Some SEO techniques have evolved to give way to better, more focused methods, some have got modified, which of course is expected, but in effect, it looks like SEO is here to stay and is even more relevant today than it was earlier.