John Reinesch’s Competitor Analysis sheet. It is a great sheet with automated functions. All you need is MOZ Tools and SEMRush. If you do not have MOZ don’t stress, the majority if not all you can finish with SEMRush
TIP: Do not just use this doc/template for SEO.
You still have to do your Website Technical Analysis, some of the areas you will answer again in the competitor sheet.
The more you get to look at a website and competitors the more you discover.