| cached page | A snapshot of a webpage as it appeared when a search engine last crawled it. |
| nosnippet tag | A meta tag that tells search engines not to show a description with your listing. |
| volatility | A way to measure a tendency towards change or unpredictability. In relation to search engines, high volatility means there is a high amount of change occurring in the search results. Low volatility means that there is general stability. |
| dns | A Domain Name Server (DNS) allows domain names (ex: moz.com) to be linked to IP addresses (ex: 127.0.0.1). DNS essentially translates domain names into IP addresses so that browsers can load the pages resources. |
| meta title tag | This defines the title of the webpage as seen seen in the browser tab and in search engine result pages. SEO important and should contain the primary keyphrase you want that webpage to rank for. Ideally should be less than 60 characters long. |