Instant Vitals

Open source tools to track Web Vitals metrics in the field

In June 2021, Google will incorporate a new set of search ranking signals called Web Vitals. These new signals measure the real-world performance of your website and improve the experience of your visitors. We built this tool to help find and fix Core Web Vitals issues at Instant Domain Search, and have made it available at GitHub under the MIT license.

Use Instant Vitals to identify parts of your website that are degrading your Web Vitals scores. Store the results in Google BigQuery and discover opportunities to improve your users’ experiences.

Connect to Page Speed Insights today to see how Google scores your Web Vitals. See which elements affect your score and use Instant Vitals to capture and store the metrics in Google BigQuery. Offending elements on your page are converted into XPath queries so that you can track down issues and resolve them.

The three core web vitals metrics are:

  • LCP (Largest Contentful Paint): the time it takes to render the largest element on your page.
  • FID (First Input Delay): the delay measured between a user’s first interaction with your site and when your website responds to the interaction.
  • CLS (Cumulative Layout Shift): measures the size and displacement of layout shifts on your page.