| blog comment spam | comments that are left on a blog that add no value to the article or discussion, typically including a backlink to an external website. Blog comment spam may be automated by a bot or left manually. |
| ad extensions | An ad extension is additional data concerning a business/product that can be added to an advertisement, such as a link to a website or phone number. Extensions help the ad get noticed and provides alternate means of lead generation. |
| trusted site | An authority site is a very high-quality website that is trusted and respected by industry experts, other websites, and search engines. Such types of websites have usually many incoming links from other hub/expert sites. Authority sites enjoy high page rank by search engines. Back-links from authority sites also improve the ranking of a website on search engines. Wikipedia is an example of an authority site. |
| http | The Hypertext Transfer Protocol is how data is transferred from a computer server to a web browser. |
| safari | Apples web browser. |
