| e com | These types of web sites are those devoted solely to retail sales. |
| hostile environment | Noun phrase. A search result populated by multiple unfavorable articles from numerous sources, usually all being hostile entities. |
| naturality | Noun. 1) A metric or measure of a range of search listings (q.v.) for a query which are not optimized to be included in the search results. A perfectly natural search result (q.v.) has a Naturality value of 1.0, reflecting the fact that none of the search listings (q.v.) are optimized for placement in the result. 2) The characteristic of being natural in the sense of not having been optimized for inclusion or ranking within a group or collection of natural, transparent, or opaque objects. |
| hreflang | A tag that indicates to Google which language the content is in. This helps Google serve the appropriate language version of your page to people searching in that language. |
| google mobilegeddon | A major algorithmic update released by Google in April 2015 to de-rank websites that do not optimize for mobile. |
