Core Web Vitals (CWV) are the speed metrics part of Google’s Page Experience signals used to measure user experience. The metrics measure visual load with Largest Contentful Paint (LCP), visual stability with Cumulative Layout Shift (CLS), and interactivity with First Input Delay (FID).
We wanted to look at the data to see how websites were doing and if we could glean any important insights.
The data we used is from the Chrome User Experience Report (CrUX), which is the source of Core Web Vitals data and is data from actual Chrome users.
In the public dataset, the data is aggregated at the origin (domain) level. We also wanted to look at page-level data, so we pulled over 5.2M pages with Core Web Vitals information in Ahrefs’ Site Audit.
Let’s dig in.
Overall, we saw nearly 33% of websites passing Core Web Vitals thresholds. This is up ~10% from the previous year, indicating that websites are getting faster.
Graph showing percentage of good Core Web Vitals over time
Percentage of websites passing Core Web Vitals thresholds.
Dividing the workload like this whatsapp number list allows both the vendor and the affiliate to focus on their strengths. The improvements are similar on desktop and mobile. Most of the focus in 2021 was on mobile results. But generally, improving speed on mobile pages also improves speed on desktop pages.
Graph showing percentage of good Core Web Vitals by device
Core Web Vitals improvement by device.
Websites seem to be making progress on improving FID and CLS, but they are struggling with LCP. I’m not really surprised by this. LCP has the most components, making it the hardest to fix.
Graph showing percentage of good FID, LCP, and CLS over time
Percentage of good FID, LCP, and CLS over time.
Websites seem to struggle a bit more with LCP on mobile compared to desktop. It’s likely because of the connection speed and mobile CPUs having less processing power.
For FID, it looks like almost no one needs to worry about this metric on their desktop versions, and very few need to focus on this metric in general.