| key performance indicator | (KPI) A specific metric that shows whether a marketing initiative succeeds. For example, one KPI may be bounce rate (the percentage of visitors who leave after looking at only one page), and one could track this to determine how much interest a website is generating for first-time visitors. |
| browser | A web browser, like Chrome or Firefox, is software that allows you to access information on the web. When you make a request in your browser (ex: google.com), youre instructing your browser to retrieve the resources necessary to render that page on your device. |
| exact match | A keyword match type that allows you to reach users searching for that specific keyword alone when using Google or Bing Ads. |
| server volatility | Noun phrase. The variable responsiveness of a Web server with respect to fetch requests from users and crawlers. A Web servers responsiveness (site speed) changes over time depending on local (server-side) and remote (user/crawler) conditions. |
| crawl-to-ranking time | Noun phrase. The amount of time that elapses from when a search engine fetches a page from a Web site until the page is returned in the top ten results for a designated query. |