Is your website fast loading?
Do the pictures load fast?
Are there broken links that can hurt your ranking?
Does your website design have a professional look and feel?
Is your site 'search engine optimised'?
Is your website compliant standards?
Is your website tested in multiple browsers?
Have you done keyword analysis on your website (to find actual keywords/search terms people are using to find your business)
Do you have a backlink strategy to help your ranking and how many?