This service is required when working with an existing website.
No marketer or coder should or would dive into a website completely blind.
Much like a mechanic not jumping into fixing a machine without knowing how it works.
Website Audits will display weak points in your website and give an SEO consultant an overall scope of what is required to improve your search visibility.
If you would like to see a website auditing tool in action please check out https://www.metaforensics.io/ – It's a free tool that gives you a basic scope of your website, however, you will need to be tech-savvy otherwise it looks overwhelming.
Nixus Web Solutions allows 1 free website crawl for people that aren't clients at https://audits.nixus.com.au/
Nixus uses a number of tools for auditing websites and recognises false positives by diving further into each error.