| firebase | Firebase is a Google owned mobile platform that offers a range of services for mobile app developers. |
| organic search results | The non-sponsored area of a SERP. The results appear in order or relevancy for a users query. There are typically 10 results displayed. |
| opacity | Noun. 1) A metric or measure of a range of search listings (q.v.) for a query which are not obviously optimized to be included in the search results. A perfectly opaque search result (q.v.) has an Opacity value of 1.0, reflecting the fact that none of the search listings (q.v.) are obviously optimized for placement in the result. 2) The characteristic of being opaque in the sense of appearing to be natural to a casual, uninformed observer of a group or collection of natural, transparent, or opaque objects. |
| h2 tag | The heading element in HTML defines a structure for headings in a document. Starting with H1 as the most important heading, descending to H6, heading tags have been a standard part of HTML since HTML 2.0. |
| load speed | The time taken for a page and all of its components to fully load. A long page load speed is considered to contribute to negative user experience (UX) and correlates with lower rankings as a result. |