Result table interface of Criticalcss.com

Make your site render super fast

One place to generate all your critical css.


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Generate critical css by just entering a url

Simple to use

Just enter your url and click one button.
The tool takes care of the rest.

Validate critical css with screenshot comparisons

Validate the result

Instantly validate your critical css.
No manual testing needed!

Regenerate critical css with one click

Find and re-generate old critical css

Updated your site? One click to re-generate the critical css.
All old results saved on your account.

Happy Criticalcss.com customer
Thank you very much for your service! I like how it is easy to just put the url and done. It is really awesome how much it changed from the beginning (lower than 70) I now get 100 from Google page speed insights (99 on post that has facebook comment) Also 100 from Gtmetrik.
Emily
Happy Criticalcss.com customer
I just got 100/100 with google! Only on my home page now, but thanks!! :)
Happy Criticalcss.com customer
Thank you for wonderful and useful aid. I was able to get my Wordpress Pagespeed to 98! You have provided very valuable tool for Wordpress community.

What our customers say

Thousands of happy customers, maxed out Google PageSpeed Insight scores, and most importantly — happy users!

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Unlimited usage. Cancel at any time.

£2/mo
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