How to make an SEO audit report ?

[Khuzaima]

Recently I saw a site that was charging $100-200 for making an SEO audit report & it was a one time payment.
I want to know how to make an SEO audit report in formal manner.
Please tell me complete format and resource from which you have taken answer...
Also tell me exact definition of SEo audit report.

[Romio SEO]

The No. 1 rule in SEO is to check your site for on-site search engine optimization problems.

The reality is that no matter how amazing your webmaster is, there’s a 99.9% chance your site will still have some problems.

Visibility is usually at the top of the list, followed by missing, incomplete or broken copy, links and images.

Ignoring a site audit can mean leaving a lot of money on the table when it comes to site traffic and conversions.

That’s why we created our Site Auditor – so you can look like a hero when you find and fix significant site problems. Here’s everything you need to know to use Raven’s Site Auditor to audit like a boss.

[PoipleShadow]

Good websites to track your sites performance and setup are

http://www.alexa.com
(used to see how many people (very roughly) go to your site)

https://www.google.com/webmasters/tools/...
(you can add your website to google webmasters to track the search keywords etc and what links to it)

http://validator.w3.org/
(website for ensuring your website is complient to standards, google and other search engines like sites that are properly structured, it's also good practice)

http://nibbler.silktide.com/
(nice site that checks your site - shows possible solutions to improve your website)

It also helps having links to your site, having a link here you help as it would show google that something is linking to it, thus giving it more credibility. (although you should make sure that the pages that link to it are relatively related to yours where ever possible).
Source:
By spending hours and hours doing SEO on my new website
http://www.beingchildren.org