Title: [Jetpack Boost - Website Speed, Performance and Critical CSS] Support - page 7 | WordPress.org --- # [Jetpack Boost - Website Speed, Performance and Critical CSS] Support Search for: [Log in to Create a Topic](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Fplugin%2Fjetpack-boost%2Fpage%2F7%2F%3Foutput_format%3Dmd&locale=en_US) [←](https://wordpress.org/support/plugin/jetpack-boost/page/6/?output_format=md) [1](https://wordpress.org/support/plugin/jetpack-boost/?output_format=md) [2](https://wordpress.org/support/plugin/jetpack-boost/page/2/?output_format=md) [3](https://wordpress.org/support/plugin/jetpack-boost/page/3/?output_format=md)… [6](https://wordpress.org/support/plugin/jetpack-boost/page/6/?output_format=md) 7 [8](https://wordpress.org/support/plugin/jetpack-boost/page/8/?output_format=md)… [22](https://wordpress.org/support/plugin/jetpack-boost/page/22/?output_format=md) [23](https://wordpress.org/support/plugin/jetpack-boost/page/23/?output_format=md) [24](https://wordpress.org/support/plugin/jetpack-boost/page/24/?output_format=md) [→](https://wordpress.org/support/plugin/jetpack-boost/page/8/?output_format=md) - Topic - Participants - Replies - Last Post * - [Cache Site Pages on Multisite?](https://wordpress.org/support/topic/cache-site-pages-on-multisite/) - Started by: [Rolf Allard van Hagen](https://wordpress.org/support/users/ravanh/) - 1 - 1 - [2 years, 1 month ago](https://wordpress.org/support/topic/cache-site-pages-on-multisite/#post-17742708) - [Rolf Allard van Hagen](https://wordpress.org/support/users/ravanh/) * - [Failure to generate Critical CSS](https://wordpress.org/support/topic/failure-to-generate-critical-css-4/) - Started by: [pkrynauw](https://wordpress.org/support/users/pkrynauw/) - 4 - 6 - [2 years ago](https://wordpress.org/support/topic/failure-to-generate-critical-css-4/#post-17762569) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [unable to optimize critical css loading](https://wordpress.org/support/topic/unable-to-optimize-critical-css-loading/) - Started by: [laxmiabhay16](https://wordpress.org/support/users/laxmiabhay16/) - 4 - 5 - [2 years ago](https://wordpress.org/support/topic/unable-to-optimize-critical-css-loading/#post-17759054) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Jetpack updated for auto-regenerating CSS broke the functionality of my website](https://wordpress.org/support/topic/jetpack-updated-for-auto-regenerating-css-broke-the-functionality-of-my-website/) - Started by: [bluewave0000](https://wordpress.org/support/users/bluewave0000/) - 2 - 2 - [2 years, 1 month ago](https://wordpress.org/support/topic/jetpack-updated-for-auto-regenerating-css-broke-the-functionality-of-my-website/#post-17740931) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Unable to Enable to Image CDN](https://wordpress.org/support/topic/unable-to-enable-to-image-cdn/) - Started by: [alternax](https://wordpress.org/support/users/alternax/) - 2 - 1 - [2 years, 1 month ago](https://wordpress.org/support/topic/unable-to-enable-to-image-cdn/#post-17738653) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [Failed to generate Critical CSS](https://wordpress.org/support/topic/failed-to-generate-critical-css-88/) - Started by: [alerup](https://wordpress.org/support/users/alerup/) - 4 - 4 - [2 years ago](https://wordpress.org/support/topic/failed-to-generate-critical-css-88/#post-17764419) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Failed to create critical CSS – Retry doesn’t work](https://wordpress.org/support/topic/failed-to-create-critical-css-retry-doesnt-work/) - Started by: [Floris](https://wordpress.org/support/users/florismk/) - 6 - 13 - [2 years ago](https://wordpress.org/support/topic/failed-to-create-critical-css-retry-doesnt-work/#post-17805679) - [Floris](https://wordpress.org/support/users/florismk/) * - [Failed to generale critical CSS – Timeout](https://wordpress.org/support/topic/failed-to-generale-critical-css-timeout/) - Started by: [claudiopisu](https://wordpress.org/support/users/claudiopisu/) - 4 - 6 - [2 years ago](https://wordpress.org/support/topic/failed-to-generale-critical-css-timeout/#post-17743519) - [claudiopisu](https://wordpress.org/support/users/claudiopisu/) * - [Failed to verify page](https://wordpress.org/support/topic/failed-to-verify-page/) - Started by: [lumengl](https://wordpress.org/support/users/lumengl/) - 5 - 4 - [1 year, 7 months ago](https://wordpress.org/support/topic/failed-to-verify-page/#post-18101470) - [Adnan Haque (a11n)](https://wordpress.org/support/users/adnan007/) * - [Impossible de générer le CSS critique](https://wordpress.org/support/topic/impossible-de-generer-le-css-critique-2/) - Started by: [joaqua](https://wordpress.org/support/users/joaqua/) - 3 - 3 - [2 years, 1 month ago](https://wordpress.org/support/topic/impossible-de-generer-le-css-critique-2/#post-17725606) - [joaqua](https://wordpress.org/support/users/joaqua/) * - [Cannot delete Jetpack Boost Error: Deletion failed…](https://wordpress.org/support/topic/cannot-delete-jetpack-boost-error-deletion-failed/) - Started by: [danrancan](https://wordpress.org/support/users/danrancan/) - 3 - 2 - [2 years, 1 month ago](https://wordpress.org/support/topic/cannot-delete-jetpack-boost-error-deletion-failed/#post-17730280) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Cannot read properties of undefined (reading ‘generateCriticalCSS’)](https://wordpress.org/support/topic/cannot-read-properties-of-undefined-reading-generatecriticalcss-2/) - Started by: [javierproaudio](https://wordpress.org/support/users/javierproaudio/) - 2 - 2 - [2 years, 1 month ago](https://wordpress.org/support/topic/cannot-read-properties-of-undefined-reading-generatecriticalcss-2/#post-17723385) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Clear Jetpack Image Cache of my Entire Website](https://wordpress.org/support/topic/clear-jetpack-image-cache-of-my-entire-website/) - Started by: [savingsbazar](https://wordpress.org/support/users/savingsbazar/) - 2 - 1 - [2 years, 1 month ago](https://wordpress.org/support/topic/clear-jetpack-image-cache-of-my-entire-website/#post-17709955) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Page returned status code 404](https://wordpress.org/support/topic/page-returned-status-code-404/) - Started by: [johnmichaelpacholli](https://wordpress.org/support/users/johnmichaelpacholli/) - 4 - 4 - [2 years, 1 month ago](https://wordpress.org/support/topic/page-returned-status-code-404/#post-17737272) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Failed to Generate CSS](https://wordpress.org/support/topic/failed-to-generate-css/) - Started by: [ivie](https://wordpress.org/support/users/ivie/) - 6 - 8 - [2 years, 1 month ago](https://wordpress.org/support/topic/failed-to-generate-css/#post-17719800) - [Pete (a11n)](https://wordpress.org/support/users/dilirity/) * - [Critical CSS](https://wordpress.org/support/topic/critical-css-21/) - Started by: [studiose](https://wordpress.org/support/users/studiose/) - 4 - 7 - [2 years, 1 month ago](https://wordpress.org/support/topic/critical-css-21/#post-17723412) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Failed to generate Critical CSS](https://wordpress.org/support/topic/failed-to-generate-critical-css-87/) - Started by: [koullis](https://wordpress.org/support/users/koullis/) - 5 - 6 - [2 years, 1 month ago](https://wordpress.org/support/topic/failed-to-generate-critical-css-87/#post-17727529) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Error Message with Regenerating CSS](https://wordpress.org/support/topic/error-message-with-regenerating-css/) - Started by: [tybrai](https://wordpress.org/support/users/tybrai/) - 3 - 2 - [2 years, 1 month ago](https://wordpress.org/support/topic/error-message-with-regenerating-css/#post-17706304) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Critical CSS generation keeps restarting, performance measurements don’t update](https://wordpress.org/support/topic/critical-css-generation-keeps-restarting-performance-measurements-dont-update/) - Started by: [Floris](https://wordpress.org/support/users/florismk/) - 2 - 3 - [2 years, 1 month ago](https://wordpress.org/support/topic/critical-css-generation-keeps-restarting-performance-measurements-dont-update/#post-17690906) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Querystring with ?jb-generate-critical-css= loads wrong page](https://wordpress.org/support/topic/querystring-with-jb-generate-critical-css-loads-wrong-page/) - Started by: [arjanjenny](https://wordpress.org/support/users/arjanjenny/) - 2 - 5 - [2 years, 1 month ago](https://wordpress.org/support/topic/querystring-with-jb-generate-critical-css-loads-wrong-page/#post-17690899) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Critical CSS failed to generate](https://wordpress.org/support/topic/critical-css-failed-to-generate/) - Started by: [gospe016](https://wordpress.org/support/users/gospe016/) - 3 - 4 - [2 years, 1 month ago](https://wordpress.org/support/topic/critical-css-failed-to-generate/#post-17727531) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Jetpack Boost Critical CSS failed to generate](https://wordpress.org/support/topic/jetpack-boost-critical-css-failed-to-generate/) - Started by: [Dion](https://wordpress.org/support/users/dvalilis/) - 5 - 7 - [2 years, 1 month ago](https://wordpress.org/support/topic/jetpack-boost-critical-css-failed-to-generate/#post-17730558) - [Emily A. (a11n)](https://wordpress.org/support/users/happyaxident/) * - [Jetboost](https://wordpress.org/support/topic/jetboost/) - Started by: [ebrechtb11](https://wordpress.org/support/users/ebrechtb11/) - 3 - 3 - [2 years, 1 month ago](https://wordpress.org/support/topic/jetboost/#post-17723404) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Failed to generate Critical CSS](https://wordpress.org/support/topic/failed-to-generate-critical-css-86/) - Started by: [TomKephart](https://wordpress.org/support/users/tomkephart/) - 2 - 1 - [2 years, 2 months ago](https://wordpress.org/support/topic/failed-to-generate-critical-css-86/#post-17552109) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Speed on my website and WordPress is very slow](https://wordpress.org/support/topic/speed-on-my-website-and-wordpress-is-very-slow/) - Started by: [collectify](https://wordpress.org/support/users/collectify/) - 3 - 2 - [2 years, 1 month ago](https://wordpress.org/support/topic/speed-on-my-website-and-wordpress-is-very-slow/#post-17698150) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Failed to generate Critical CSS](https://wordpress.org/support/topic/failed-to-generate-critical-css-85/) - Started by: [Hermitband](https://wordpress.org/support/users/hermitband/) - 2 - 6 - [2 years, 1 month ago](https://wordpress.org/support/topic/failed-to-generate-critical-css-85/#post-17693216) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [CSS Failing](https://wordpress.org/support/topic/css-failing/) - Started by: [damax83](https://wordpress.org/support/users/damax83/) - 6 - 15 - [2 years, 1 month ago](https://wordpress.org/support/topic/css-failing/#post-17730712) - [Emily A. (a11n)](https://wordpress.org/support/users/happyaxident/) * - [Jetpack Boost – Failed to generate CSS](https://wordpress.org/support/topic/jetpack-boost-failed-to-generate-css/) - Started by: [sixteenramos](https://wordpress.org/support/users/sixteenramos/) - 7 - 7 - [2 years, 1 month ago](https://wordpress.org/support/topic/jetpack-boost-failed-to-generate-css/#post-17687924) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Plugin could not be activated](https://wordpress.org/support/topic/plugin-could-not-be-activated-44/) - Started by: [magick207](https://wordpress.org/support/users/magick207/) - 3 - 4 - [2 years, 1 month ago](https://wordpress.org/support/topic/plugin-could-not-be-activated-44/#post-17702698) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [failed to generate CSS, / cannot parse](https://wordpress.org/support/topic/failed-to-generate-css-cannot-parse/) - Started by: [c6ryl](https://wordpress.org/support/users/c6ryl/) - 3 - 2 - [2 years, 2 months ago](https://wordpress.org/support/topic/failed-to-generate-css-cannot-parse/#post-17551266) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) *   [←](https://wordpress.org/support/plugin/jetpack-boost/page/6/?output_format=md) [1](https://wordpress.org/support/plugin/jetpack-boost/?output_format=md) [2](https://wordpress.org/support/plugin/jetpack-boost/page/2/?output_format=md) [3](https://wordpress.org/support/plugin/jetpack-boost/page/3/?output_format=md)… [6](https://wordpress.org/support/plugin/jetpack-boost/page/6/?output_format=md) 7 [8](https://wordpress.org/support/plugin/jetpack-boost/page/8/?output_format=md)… [22](https://wordpress.org/support/plugin/jetpack-boost/page/22/?output_format=md) [23](https://wordpress.org/support/plugin/jetpack-boost/page/23/?output_format=md) [24](https://wordpress.org/support/plugin/jetpack-boost/page/24/?output_format=md) [→](https://wordpress.org/support/plugin/jetpack-boost/page/8/?output_format=md) * ![](https://ps.w.org/jetpack-boost/assets/icon.svg?rev=2818794) * [Jetpack Boost - Website Speed, Performance and Critical CSS](https://wordpress.org/plugins/jetpack-boost/) * [Frequently Asked Questions](https://wordpress.org/plugins/jetpack-boost/#faq) * [Support Threads](https://wordpress.org/support/plugin/jetpack-boost/) * [Active Topics](https://wordpress.org/support/plugin/jetpack-boost/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/jetpack-boost/unresolved/) * [Reviews](https://wordpress.org/support/plugin/jetpack-boost/reviews/)