| shared hosting | As opposed to a dedicated hosting package, a shared server hosts multiple website owners on the same hardware and IP. This can be dangerous, as if one website spams or gets blacklisted, the penalty will be shared through the IP. If youre on a shared hosting package, its a good idea to purchase a dedicated IP address. |
| link decay | Noun phrase. The process by which links vanish, either as they are removed from pages or the pages themselves are removed from the Web. Moving content from an old URL to a new URL without a supporting redirect is another form of link decay. Disavowing sources of links is another form of link decay. Adding the nofollow attribute to the linking page or the link A element also contributes to link rot. |
| long tail keyword | Multiple words in the string of keywords typed into a search engine. For example, a normal keyword may be baseball bats, whereas a long tail search might be where can I find wooden louisville slugger baseball bats for sale. |
| 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. |
| a/b testing | A strategy for measuring the success of a marketing campaign in which two landing pages are created and incoming traffic is split between them to compare the conversion rates of each. |
