| searchability | Searchability refers to the ease of finding a particular website within a search engine. |
| hits | Hits are visitors to a website. A successful campaign could be said to be one which delivered a lot of hits. Hits are not necessarily specific to a particular platform, they could be search engine visits, PPC, social media, or from people clicking a link on another website. |
| gray hat seo | SEO strategies that toe the line of search engine guidelines. They are questionable, but not as clearly in violation of guidelines as black hat SEO tactics. |
| crawling | The process by which search engines discover your web pages. |
| keyword difficulty | At Moz, Keyword Difficulty is an estimate, in the form of a numerical score, of how difficult it is for a site to outrank their competitors. |
