SEO Audit Strategy For A Complex Website?

[CTSupp]

I am looking for a list of SEO audit tools and strategies for a complex website. The things I am looking for include (but not limited to):

• finding all the subdomains of the website
• listing all the 301's, 302's, 404's, etc
• finding current canonical tags
• suggesting canonical tags for certain links
• listing / finding all current rel=nofollow's on the website
• listing internal links which use & don't use 'www.'
• finding duplicate content on additional domains owned by this website

I know how to find some of the items above, but not sure if my methods are optimal and/or the most accurate.

Thank you in advance for your input!

[WesleySmits]

You could use this extensive guide: http://moz.com/blog/how-to-perform-the-worlds-greatest-seo-audit

If after this guide you still have questions let me know and i would be happy to help you with that