| not-provided | Is the default placeholder that Google Analytics displays in the Keywords report to hide the most popular keywords that drive organic search traffic to a website. In order to discover these hidden keywords, you need to use a third party tool like SEMrush or Google Search Console. This was implemented by Google in 2011 in an effort to protect the privacy of searchers. |
| nosnippet tag | A meta tag that tells search engines not to show a description with your listing. |
| google universal search | Google Universal Search is a type of search in which results from multiple specialized areas are displayed in the web search listing. For example, results from Google News, YouTube or Google Images will be listed in the main Google results web page. |
| 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. |
| keyword explorer | A Moz tool for in-depth keyword research and discovery. |
