| pay-per-click | or PPC: Online advertising approach that determines the cost of an ad by the number of people who click on the ad. |
| volume | The average monthly number of searches this keyword receives in one of Googles regional databases. |
| render-blocking scripts | A script that forces your browser to wait to be fetched before the page can be rendered. Render-blocking scripts can add extra round trips before your browser can fully render a page. |
| research | discovering relevant keywords to your focus SEO strategy. This can be done through research tools, analytics, competitor sites etc. |
| webcrawler | Program that gathers information from various websites across the World Wide Web. |