Several years back, I developed a complex SEO audit checklist and numeric scoring system, and some people found that quite helpful, as a starting point, for their work in performing audits on a regular basis. It allows for customization, in that you can assign different values to individual items than the ones I provide, based on your own goals, experience and views on how SEO works.
Except it’s pretty overwhelming to people who just want a pure checklist to go with.
So I took the time to convert that system into a straight-forward checklist, which you can download here (It’s an Excel spreadsheet).
Your Situation Is Probably Unique
Note however, that any checklist is going to need to be adapted to your own understanding and goals. And because SEO is so complex across several algorithms, that any one checklist is not necessarily going to be enough for you to make use of if you need to drill down, deeper into more refined sub-factors.
Interpretations and Human Understanding Required
Then, of course, there’s the reality that a checklist, on its own, is never enough. If you don’t know how to interpret data you are seeing, or how to evaluate the human perspective quality of signals, you’re destined to come up short more often than not, in spite of having a checklist.
So proceed with caution any time you use this, or any checklist.