I am not clear what do you want to know? Did you built your website? If yes, then complete your on page as a first step of SEO. Selecte Title, Meta-Tag, Keywords selection, Description and then start off page.
I think you are talking about "on page" aspect of seo. For this you can check for on page factors. Main factors to see at first include:
+ META Data (Title, Description)
+ Content (seo copywriting)
+ Keywords usage throughout website
+ IA (Information Architecture)
+ Call to Actions
+ Landing Pages
+ Headings, Other SEO tags
+ Sitemaps, robots file
The list goes on!