Audit my site: Volatile traffic

I was hoping someone here had a tool or something where they could audit my site. I had a few insane traffic days on constant new records and all of a sudden plummeted. I am unsure if it was something that I did wrong or just happenstance. I can't really tell if I have 404's or some kind of error, but it looks like I am still ranking where for the articles that gave me the massive pop "Tom Hardy Bane" and "Bane Workout." Any help would be appreciated.

Check it out: google confitdent

I get about 200K UVs per month and