Auditing your website can be easy
Posted: Sun Jan 05, 2025 10:41 am
We also mentioned “Any TBT” and “Any CLS” scores. These simply reflect the average of metrics across all URLs, without taking into account their TBT or CLS performance.
To identify the factors that affect each metric and see which errors appear more frequently than others, we took the September 2021 Site Audit of 4M desktop URLs and 1.7M mobile URLs. In total, the tool ran these pages through 23 different CWV-specific checks.** which allowed us to reveal the most difficult audits and the easiest ones to pass.
The entire study is based on laboratory data.
**Note: You can find a list of all the checks, their definitions, and a full audit breakdown for mobile and desktop at the end of the post.
with Semrush Site Audit
Enter your domain
Audit your website →
ADS illustration
Findings from the Core Web Vitals Study for Mobile & Desktop
How many URLs increased their LCP, TBT and CLS scores
The charts below show how many pages – mobile and desktop – actually exceeded the good thresholds for all three CWV metrics (combined and individual) in June 2021 versus September 2021.
Before the update, only 34.5% of desktop cambodia phone number database pages met the required thresholds for all three metrics. After the update, the number of desktop URLs with all “good” scores for LCP, TBT, and CLS increased by 7 percentage points.
Mobile URLs paint a bleaker picture, with less than 4% of mobile pages passing the “good” thresholds across all three metrics. By June 2021, this figure was almost three times higher, implying that mobile pages were less prepared for updates than their desktop counterparts.
Evaluating Positive Changes in CWV Metrics Before and After the Update
However, the CWV metric has more layers than just a “good” score. LCP, TBT, and CLS can be categorized into three categories: “Good,” “Improvement,” and “Poor.”
To analyze the post-update changes at a more granular level, we checked all the improvements that occurred across all three metrics, exploring how many URLs achieved some wins by moving their LCP, TBT, and CLS scores from one category to another.
As for positive changes in pre- and post-update scores, we observed the following trends:
To identify the factors that affect each metric and see which errors appear more frequently than others, we took the September 2021 Site Audit of 4M desktop URLs and 1.7M mobile URLs. In total, the tool ran these pages through 23 different CWV-specific checks.** which allowed us to reveal the most difficult audits and the easiest ones to pass.
The entire study is based on laboratory data.
**Note: You can find a list of all the checks, their definitions, and a full audit breakdown for mobile and desktop at the end of the post.
with Semrush Site Audit
Enter your domain
Audit your website →
ADS illustration
Findings from the Core Web Vitals Study for Mobile & Desktop
How many URLs increased their LCP, TBT and CLS scores
The charts below show how many pages – mobile and desktop – actually exceeded the good thresholds for all three CWV metrics (combined and individual) in June 2021 versus September 2021.
Before the update, only 34.5% of desktop cambodia phone number database pages met the required thresholds for all three metrics. After the update, the number of desktop URLs with all “good” scores for LCP, TBT, and CLS increased by 7 percentage points.
Mobile URLs paint a bleaker picture, with less than 4% of mobile pages passing the “good” thresholds across all three metrics. By June 2021, this figure was almost three times higher, implying that mobile pages were less prepared for updates than their desktop counterparts.
Evaluating Positive Changes in CWV Metrics Before and After the Update
However, the CWV metric has more layers than just a “good” score. LCP, TBT, and CLS can be categorized into three categories: “Good,” “Improvement,” and “Poor.”
To analyze the post-update changes at a more granular level, we checked all the improvements that occurred across all three metrics, exploring how many URLs achieved some wins by moving their LCP, TBT, and CLS scores from one category to another.
As for positive changes in pre- and post-update scores, we observed the following trends: