| top level domain | end of a given web address. Like .com |
| panda update | Google updated its algorithm in 2011 to include a search filter designed to stop websites with poor quality content from making their way into its top search results. This update was called Panda. |
| de-listing | When a web page or pages are removed from a search engine directory. This can be temporary or permanent, and can happen for any number of reasons including a penalty from the search engine, a change in search engine crawl priorities, or a change in location of the page in question. |
| paul haahr | A famous google employee |
| grey hat seo | Grey Hat refers to SEO using both Black and White Hat techniques. |
