A comparison of the January 2024 Vital Web Core Scores of the major content management systems (CMS) shows that all platforms are improving, with Squarespace, WordPress and Wix showing the strongest growth rate of year-over-year improvement compared with the previous year.
Core Web Vitals is made up of a set of metrics that represent how fast a website is performing. The Core Web Vitals technology report shows real-world performance scores organized by CMS. The scores come from the Chrome UX Report (CrUX) dataset, which is a record of real scores, and the HTTPArchive dataset consisting of lab measurements of the exact same sites in the CrUX dataset. The two data set scores and measures are combined to create the Core Web Vitals technology report.
This article compares the year-over-year growth rate of core web vital scores for Drupal, Duda, Joomla, Squarespace, Wix, and WordPress for the months of January 2024 and 2023.
All performance scores discussed in this article are from measurements of websites visited on mobile devices.
The growth rate of improvements between two years is a percentage of the increase between two values representing the 2023 and 2024 scores and was calculated with ChatGPT and checked with Google Gemini.
Growth rate percentages differ from absolute rate differences (which is the difference between the two years in actual percentage points).
The growth rate formula is expressed as:
ChatGPT screenshot image
Improvement year-on-year growth rates
Year-over-year (year-on-year) improvement scores show how fast each CMS is improving.
1. Square space
The growth rate from 2023 (34.7%) to 2024 (54%) is 55.62%.
What this percentage means is that there is an increase of 55.62% when comparing the 2023 score of 34.7% to the 2024 score of 54%.
Another incredible data point is the difference in absolute percentage points between 34.7% and 54%, which is 19.3 points.
2. WordPress: 28.29% growth rate
The hard work of the WordPress performance team, which coordinates performance best practices with the core development team, continues to pay off with a substantial increase in site performance over previous years’ score. In fact, WordPress has the strongest year-over-year performance improvements of the four CMSs compared.
The percentage of WordPress sites that showed good basic web vitals performance in January 2023 was a total of 30.4%. The percentage of WordPress sites with a passing score in 2024 increased to 39.0% of sites. The difference between 2023 (30.4%) and 2024 (39.0%) represents a percentage increase of 28.29%. The absolute percentage difference between 2023 and 2024 (30.4% vs 39.0%) is 8.6%.
3. Wix – 19.07% growth rate.
In second place is Wix. In January 2023, 49.3% of Wix websites had a good CWV score, and the January 2024 score was 58.7%. This represents a percentage growth rate of 19.07%, second only to WordPress’ increase rate of 28.29%.
However, the absolute percentage difference for Wix is 9.4% versus 8.6% for WordPress.
4. Joomla: 15.46% growth rate
Joomla ranks third in year-on-year growth rate. The percentage of Joomla sites with passing Core Web Vitals scores is 40.1% in 2023 and 46.3% in 2024.
The difference between 2023 (40.1%) and 2024 (46.3%) represents a growth rate of 15.46%, just behind Wix.
Expressed as an absolute percentage difference, there is an increase of 6.2 percentage points between 2023 and 2024.
5. Drupal – 10.78% growth rate.
Open source CMS platform Drupal ranked fourth with a growth rate of 10.78% and an absolute percentage point difference of 5.5%.
6. Doubt – 7.50% growth rate.
Duda ranks #5 in growth rate from 2023 to 2024. The difference between 2023 (70.7% passing CWV) and 2024 (76.0%) represents a percentage increase of 7.50%.
One possible reason for the slower growth rate is that websites built on the Duda platform have extraordinarily high basic web vital scores, the highest of all platforms in this comparison.
Despite the incredibly high number of sites built by Duda that exceed basic web metrics, Duda still managed to improve its scores year after year.
Changes in the number of measured sites
An interesting twist in the Drupal scores is that the highest scores in 2024 are based on less measured websites. There were about 129,000 Drupal sites measured in 2024 compared to 147,000 in 2023.
This correlates with usage figures reported on Drupal.org showing a year-over-year decline in usage between 2023 (981,659 sites) and 2024 (795,595 sites), a total decline of 186,064 Drupal websites.
WordPress was also based on slightly fewer measured sites, a difference of 20,368 measured WordPress websites.
Joomla saw a decrease of 30,243 measured websites, while the amount of measured Duda sites remained stable (with only a slight decrease of 52 measured websites).
Wix and Squarespace are the only platforms in the group that had an increase in sites as measured (between 2023 and 2024) by the Core Web Vitals Technology report.
Main champions of the main web vitalities
Although WordPress had the highest growth rate of the six content management systems reported in the Core Web Vitals Technology report, the actual top performers are ranked in a different order, with Duda still taking the crown for the best basic web vital scores.
Top Ranked CMS Score by Core Web Vitals:
Duda 76.03% Wix 58.75% Drupal 56.5% Squarespace 53.97% Joomla 46.26% WordPress 39.02%
Although WordPress has the lowest number of passing websites, the growth statistics show that it is improving rapidly, which is a remarkable achievement considering the thousands of third-party themes and plugins that are not necessarily optimized for page speed
Check out the official HTTPArchive report:
Core Web Vitals Technology Report
Featured image by Shutterstock/G-Stock Studio
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