http://www.reeleffect.co.uk/search-engine-optimisation Search Engine Optimisation (SEO) improves the visibility of your website so it can be easily found by users searching for your optimised keywords. Search Engine Optimisation falls into two areas. 1) What you say about your business, known as on-page SEO having a 30% Impact on search engine rankings. 2) What others say about your business, known as off-page SEO having a 70% Impact on search engine rankings.