Interplay to Subsequent Paint (INP) is a significant Core Internet Vitals metric as a result of it represents how rapidly an internet web page responds to consumer enter. It’s so necessary that the HTTPArchive has a comparability of INP throughout content material administration techniques. The next are the highest content material administration techniques ranked by Interplay to Subsequent Paint.
What Is Interplay To Subsequent Paint (INP)?
INP measures how responsive an internet web page is to consumer interactions throughout a go to. Particularly, it measures interplay latency, which is the time between when a consumer clicks, faucets, or presses a key and when the web page visually responds.
It is a extra correct measurement of responsiveness than the older metric it changed, First Enter Delay (FID), which solely captured the primary interplay. INP is extra complete as a result of it evaluates all clicks, faucets, and key presses on a web page after which experiences a consultant worth based mostly on the longest significant latency.
The INP rating is consultant of the web page’s responsive efficiency. For that cause**,** excessive outliers are filtered out of the calculation in order that the rating displays typical worst-case responsiveness.
Internet pages with poor INP scores create a irritating consumer expertise that will increase the danger of web page abandonment. Quick responsiveness permits a smoother expertise that helps greater engagement and conversions.
INP Scores Have Three Rankings:
- Good: Beneath or at 200 milliseconds
- Wants Enchancment: Above 200 milliseconds and beneath or at 500 milliseconds
- Poor: Above 500 milliseconds
Content material Administration System INP Champions
The most recent Interplay to Subsequent Paint (INP) knowledge exhibits that each one main content material administration techniques improved from June to July, however solely by incremental enhancements.
Joomla posted the biggest acquire with a 1.12% enhance in websites reaching an excellent rating. WordPress adopted with a 0.88% enhance within the variety of websites posting an excellent rating, whereas Wix and Drupal improved by 0.70% and 0.64%.
Duda and Squarespace additionally improved, although by smaller margins of 0.46% and 0.22%. Even small share modifications can replicate actual enhancements in how customers expertise responsiveness on these platforms, so it’s encouraging that each publishing platform on this comparability is enhancing.
CMS INP Rating By Month-to-month Enchancment
- Joomla: +1.12%
- WordPress: +0.88%
- Wix: +0.70%
- Drupal: +0.64%
- Duda: +0.46%
- Squarespace: +0.22%
Which CMS Has The Greatest INP Scores?
Month-to-month enchancment exhibits who’s doing higher, however that’s not the identical as which CMS is doing the most effective. The July INP outcomes present a distinct rating order of content material administration techniques when seen by total INP scores.
Squarespace leads with 96.07% of websites reaching an excellent INP rating, adopted by Duda at 93.81%. It is a large distinction from the Core Internet Vitals rankings, the place Duda is constantly ranked primary. In terms of arguably an important Core Internet Very important metric, Squarespace takes the lead because the primary ranked CMS for Interplay to Subsequent Paint.
Wix and WordPress are ranked within the center with 87.52% and 86.77% of websites displaying an excellent INP rating, whereas Drupal, with a rating of 86.14%, is ranked in fifth place, only a fraction behind WordPress.
Rating in sixth place on this comparability is Joomla, trailing the opposite 5 with a rating of 84.47%. That rating just isn’t so unhealthy contemplating that it’s solely two to a few p.c behind Wix and WordPress.
CMS INP Rankings for July 2025
- Squarespace – 96.07%
- Duda: 93.81%
- Wix: 87.52%
- WordPress: 86.77%
- Drupal: 86.14%
- Joomla: 84.47%
These rankings present that even platforms that lag in INP efficiency, like Joomla, are nonetheless enhancing, and it may very well be that Joomla’s efficiency could greatest the opposite platforms sooner or later if it retains up its enchancment.
In distinction, Squarespace, which already performs effectively, posted the smallest acquire. This means that efficiency enchancment is uneven, with techniques advancing at totally different speeds. However, the most recent Interplay to Subsequent Paint (INP) knowledge exhibits that each one six content material administration techniques on this comparability improved from June to July. That upward efficiency pattern is a optimistic signal for publishers.
What About Shopify’s INP Efficiency?
Shopify has robust Core Internet Vitals efficiency, however how effectively does it evaluate to those six content material administration techniques? This may appear to be an unfair comparability as a result of procuring platforms require options, pictures, and movies that may sluggish a web page down. However Duda, Squarespace, and Wix provide ecommerce options, so it’s really a good and affordable comparability.
We see that the rankings change when Shopify is added to the INP comparability:
Shopify Versus Everybody
- Squarespace: 96.07%
- Duda: 93.81%
- Shopify: 89.58%
- Wix: 87.52%
- WordPress: 86.77%
- Drupal: 86.14%
- Joomla: 84.47%
Shopify is ranked quantity three. Now have a look at what occurs once we evaluate the three procuring platforms in opposition to one another:
Prime Ranked Purchasing Platforms By INP
- BigCommerce: 95.29%
- Shopify: 89.58%
- WooCommerce: 87.99%
BigCommerce is the number-one-ranked procuring platform for the necessary INP metric among the many three on this comparability.
Lastly, we evaluate the INP efficiency scores for all of the platforms collectively, resulting in a shocking comparability.
CMS And Purchasing Platforms Comparability
- Squarespace: 96.07%
- BigCommerce: 95.29%
- Duda: 93.81%
- Shopify: 89.58%
- WooCommerce: 87.99%
- Wix: 87.52%
- WordPress: 86.77%
- Drupal: 86.14%
- Joomla: 84.47%
All three ecommerce platforms characteristic within the prime 5 rankings of content material administration techniques, which is exceptional due to the resource-intensive calls for of ecommerce web sites. WooCommerce, a WordPress-based procuring platform, ranks in place 5, nevertheless it’s so near Wix that they’re nearly tied for place 5.
Takeaways
INP measures the responsiveness of an internet web page, making it a significant indicator of consumer expertise. The most recent knowledge exhibits that whereas each CMS is enhancing, Squarespace, BigCommerce, and Duda outperform all different content material platforms on this comparability by significant margins.
The entire platforms on this comparability present excessive percentages of fine INP scores. The quantity four-ranked Shopify is simply 6.49 share factors behind the top-ranked Squarespace, and 84.47% of the websites printed with the bottom-ranked Joomla present an excellent INP rating. These outcomes present that each one platforms are delivering a top quality expertise for customers
View the outcomes right here (have to be logged right into a Google account to view).
Featured Picture by Shutterstock/Roman Samborskyi
