Results of the study
Below are the results of the analysis of desktop and mobile URLs.
Desktop vs Mobile
The main findings we found when comparing desktop to mobile are:
Nearly 84% of the URLs analyzed that rank in the top 10 mobile results in the United States scored as “slow” or “needs improvement.” Google has stated that pages that receive a “fast” score on the Core Web Vitals have a good user experience and may receive a boost in this regard, provided that the other elements of the page experience (HTTPS, mobile-friendliness, etc.) are in place.
The total percentage of URLs with all "fast" metrics is 16.2% for mobile and 34.70% for desktop.
The total percentage of URLs with at least one metric "to improve" and the rest "fast" is 14.50% for mobile and 22.88% for desktop.
The total percentage of URLs with at least one “slow” metric is 69.30% for mobile and 42.42% for desktop.
The total percentage of URLs that have all metrics in the "slow" category is 7.97% for mobile and 1.29% for desktop.
The most optimized URLs (based on the number of "quick" metrics and average values for each metric) position for mobile and desktop.
In mobile search results, starting from the third position, we have observed a trend of worsening TBT and LCP. However, CLS is decreasing.
In desktop search results, starting from the second position, we have observed a worsening trend in TBT and CLS, while LCP is relatively stable.
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Core Web Vitals Results for Mobile
In total, 78,434 URLs were analyzed from a mobile perspective vietnam mobile database and none had any issues when collecting metrics.
Overall distribution of URLs in each metric
LCP- Largest Contentful Paint
Most URLs were within the “Good” LCP value.
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TBT (Total blocking time - FID)
Most URLs have “poor” TBT.
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CLS (Cumulative Layout Changes)
Most URLs have a “Good” CLS
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Combining metrics
When analyzing the percentage of URLs with each combination of metrics, we observed that most URLs ( 25.6% ) have good LCP and CLS, but poor TBT. Only 16.2% of URLs have all metrics "right".