| search algorithm | Most likely referring to Google, the Search Algorithm is the system that determines what sites rank for particular keywords. If you want to get a general idea as to what Google algorithms look for, you can refer to Googles own How Search Works page. |
| toxic words | Words that, when used on a page or site, trigger loss of trust and respect in the eyes of search engines. |
| made for advertisements | These types of sites are designed as a venue for advertisements. |
| back link | A back link is a hyperlink into a page or site from any other page or site. A page with a lot of quality back links tends to rank higher on search engines. Back links from high-quality websites inform search engines that the website ?linking to is also trustworthy and of high quality. |
| google supplemental index | A secondary database that Google uses to store pages it deems to be of less importance to its main search engine results. |
