| subdomain | A separate section that exists within a main domain. For example: |
| headings tags | Commonly are the page title [ H1 ], paragraph titles [ H2 ] and sub-paragraph titles [ H3 ]. Previously had some SEO significance and still often included in SEO page checking programs. Actual current SEO value a source of discussion. Still best to use no more than one H1 tag on each page and go easy with the others. |
| hypertext transfer protocol | (HTTP) The protocol used to communicate between servers and web browsers. Data is sent from a websites server to a users browser. |
| supplemental index | Supplemental Index refers to Googles secondary database containing pages considered to have less importance. The importance of a page is measured by the number of links pointing to it. If, according to Googles algorithm, a page is depreciated, it will not pass to the target page. It will appear on a supplemental page that will rank in search results only if there are not enough pages in the main index. Supplemental results are rarely rank and, thereby, they dont pull much weight in Google. |
| natural backlink | Naturally acquired backlinks that are placed within the body of content. |
