If you’re in the world of SEO, you will no doubt be aware that Core Web Vitals are a set of metrics from Google that measure a website’s user experience. They focus on loading performance, interactivity, and visual stability. These metrics are a part of Google’s “page experience” ranking signals, meaning that improving them can help a website rank higher in search results. In this article, we show you how to understand and improve your Core Web Vitals.
What are the Three Core Web Vitals?
Let’s take a look at the three main Core Web Vitals metrics:
- Largest Contentful Paint (LCP): This metric measures how long it takes for the largest content element (like an image or a block of text) to become visible to the user. To provide a good user experience, a page’s LCP should be 2.5 seconds or less.
- Interaction to Next Paint (INP): INP measures how quickly a page responds to user interactions, such as clicks, taps, or keypresses. For a good user experience, pages should have an INP of 200 milliseconds or less. INP replaced First Input Delay (FID) as a Core Web Vital in March 2024.
- Cumulative Layout Shift (CLS): This metric measures the visual stability of a page by quantifying how much its elements unexpectedly move around as it loads. To provide a good user experience, pages should have a CLS score of 0.1 or less.
How to Measure and Improve Core Web Vitals
Here’s what you need to know. You can measure your website’s Core Web Vitals using various tools. The first step here is to choose the right tool for your needs.
- Google Search Console: The Core Web Vitals report in Google Search Console provides an overview of your site’s performance based on real-user data.
- PageSpeed Insights: This tool analyzes a single webpage and provides a performance score, including Core Web Vitals metrics.
- Chrome DevTools: The Performance tab in Chrome DevTools allows for in-depth analysis of a page’s performance to identify bottlenecks.
- Lighthouse: An open-source, automated tool for improving the quality of web pages.
Once you’ve done this, you can start to implement some of these general recommendations for improving your Core Web Vitals scores:
How to Optimise LCP
- Ensure the LCP resource is easily discoverable in the HTML source.
- Prioritize the LCP resource.
- Use a Content Delivery Network (CDN) to reduce server response times.
- Avoid lazy loading images that are above the fold.
How to Optimise INP
- Break up long-running JavaScript tasks.
- Avoid unnecessary JavaScript.
- Minimize large rendering updates.
How to Optimise CLS
- Specify the size of images and other media in the HTML to reserve space.
- Avoid inserting new content above existing content, unless it’s in response to a user interaction.
- Avoid animations that trigger layout changes.
Conclusion
Simply put, Core Web Vitals are essential for a good user experience and can impact your search engine rankings. By understanding and optimizing these metrics, you can create a faster, more stable, and more responsive website for your users. As web standards and user expectations evolve, staying on top of Core Web Vitals will be crucial for long-term SEO success.