| google quality guidelines | Published guidelines from Google detailing tactics that are forbidden because they are malicious and/or intended to manipulate search results. |
| noindex tag | A meta tag that instructions a search engine not to index the page its on. |
| infographic | Noun. A large, oversized image in which many purported facts have been embedded in a stylized format. The intent of the infographic is to encapsulate useful, interesting information in an easy-to-read manner. Infographics cannot be indexed by search engines but they have given rise to Infographic Spam (q.v.). |
| link accessibility | The ease with which a link can be found by human visitors or crawlers. |
| dom | The Document Object Model (DOM) is the structure of an HTML document ? it defines how that document can be accessed and changed by things like JavaScript. |
