| vpn | (Virtual Private Network) A virtual private network adds a layer of security to your connection. Its usually used to encrypt data and hide location. Its useful as you can protect yourself from cybernetic attacks. |
| mobile speed | The amount of time taken for a web page to fully load on a mobile device. Search engines place increasing importance on mobile speed, with Google having announced it as a ranking factor. |
| internet protocol address | (IP) The specific identification number assigned to an individual device with Internet access. Every device connected to the Internet has an IP address, and it can be thought of as a recognizable name. |
| null relevance | Noun phrase. The complete lack of internal or external factors that create a positive relevance score for a document in a search result in which the document is listed. |
| breadcrumbs | Breadcrumbs, as seen on websites or on search engine results pages, are set of navigational links that refer to root areas and categories of a resource. |