Title: [Jetpack Boost - Website Speed, Performance and Critical CSS] Support - page 4 | 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%2F4%2F%3Foutput_format%3Dmd&locale=en_US) [←](https://wordpress.org/support/plugin/jetpack-boost/page/3/?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) 4 [5](https://wordpress.org/support/plugin/jetpack-boost/page/5/?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/5/?output_format=md) - Topic - Participants - Replies - Last Post * - [Generic error when trying to set cache exceptions](https://wordpress.org/support/topic/generic-error-when-trying-to-set-cache-exceptions/) - Started by: [Sarah](https://wordpress.org/support/users/sareejoh/) - 2 - 1 - [1 year, 6 months ago](https://wordpress.org/support/topic/generic-error-when-trying-to-set-cache-exceptions/#post-18166758) - [Pete (a11n)](https://wordpress.org/support/users/dilirity/) * - [Failure to create Critical css](https://wordpress.org/support/topic/failure-to-create-critical-css/) - Started by: [cuppa500](https://wordpress.org/support/users/cuppa500/) - 3 - 2 - [1 year, 6 months ago](https://wordpress.org/support/topic/failure-to-create-critical-css/#post-18182115) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Jetpack Boost: Speed ratings could not be loaded.](https://wordpress.org/support/topic/jetpack-boost-speed-ratings-could-not-be-loaded/) - Started by: [boombatze](https://wordpress.org/support/users/boombatze/) - 3 - 4 - [1 year, 6 months ago](https://wordpress.org/support/topic/jetpack-boost-speed-ratings-could-not-be-loaded/#post-18168740) - [Pete (a11n)](https://wordpress.org/support/users/dilirity/) * - [The WordPress cache constant must be updated](https://wordpress.org/support/topic/the-wordpress-cache-constant-must-be-updated/) - Started by: [subhansafdars](https://wordpress.org/support/users/subhansafdars/) - 3 - 2 - [1 year, 6 months ago](https://wordpress.org/support/topic/the-wordpress-cache-constant-must-be-updated/#post-18158251) - [Adnan Haque (a11n)](https://wordpress.org/support/users/adnan007/) * - [Failed to generate Critical CSS](https://wordpress.org/support/topic/failed-to-generate-critical-css-102/) - Started by: [mgrahovac](https://wordpress.org/support/users/mgrahovac/) - 4 - 3 - [1 year, 6 months ago](https://wordpress.org/support/topic/failed-to-generate-critical-css-102/#post-18168467) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Serve images in next-gen formats](https://wordpress.org/support/topic/serve-images-in-next-gen-formats-9/) - Started by: [satishraj19](https://wordpress.org/support/users/satishraj19/) - 2 - 1 - [1 year, 6 months ago](https://wordpress.org/support/topic/serve-images-in-next-gen-formats-9/#post-18136551) - [lastsplash (a11n)](https://wordpress.org/support/users/lastsplash/) * - [Impossibile generare il CSS critico](https://wordpress.org/support/topic/impossibile-generare-il-css-critico/) - Started by: [avventurasullegambe](https://wordpress.org/support/users/avventurasullegambe/) - 2 - 2 - [1 year, 6 months ago](https://wordpress.org/support/topic/impossibile-generare-il-css-critico/#post-18153380) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [email from connected as](https://wordpress.org/support/topic/email-from-connected-as/) - Started by: [lamboman666](https://wordpress.org/support/users/lamboman666/) - 3 - 2 - [1 year, 6 months ago](https://wordpress.org/support/topic/email-from-connected-as/#post-18150565) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Failing to generate CSS](https://wordpress.org/support/topic/failing-to-generate-css/) - Started by: [leakp](https://wordpress.org/support/users/leakp/) - 3 - 5 - [1 year, 6 months ago](https://wordpress.org/support/topic/failing-to-generate-css/#post-18143387) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [Woocommerce Paypal Payments breaks Jetpack Boost](https://wordpress.org/support/topic/woocommerce-paypal-payments-breaks-jetpack-boost/) - Started by: [docdocdocdoc](https://wordpress.org/support/users/docdocdocdoc/) - 3 - 2 - [1 year, 6 months ago](https://wordpress.org/support/topic/woocommerce-paypal-payments-breaks-jetpack-boost/#post-18134183) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Error: Failed to JSON.parse](https://wordpress.org/support/topic/error-failed-to-json-parse/) [1](https://wordpress.org/support/topic/error-failed-to-json-parse/?output_format=md) [2](https://wordpress.org/support/topic/error-failed-to-json-parse/page/2/?output_format=md) - Started by: [phil381](https://wordpress.org/support/users/phil381/) - 3 - 18 - [1 year, 6 months ago](https://wordpress.org/support/topic/error-failed-to-json-parse/page/2/#post-18147848) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Failed to generate critical CSS](https://wordpress.org/support/topic/failed-to-generate-critical-css-101/) - Started by: [cfrost](https://wordpress.org/support/users/cfrost/) - 3 - 4 - [1 year, 6 months ago](https://wordpress.org/support/topic/failed-to-generate-critical-css-101/#post-18139824) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Error generating critical CSS](https://wordpress.org/support/topic/error-generating-critical-css/) - Started by: [remouk](https://wordpress.org/support/users/remouk/) - 3 - 5 - [1 year, 7 months ago](https://wordpress.org/support/topic/error-generating-critical-css/#post-18119867) - [Adnan Haque (a11n)](https://wordpress.org/support/users/adnan007/) * - [Outdated Critical CSS](https://wordpress.org/support/topic/outdated-critical-css/) - Started by: [susanna96](https://wordpress.org/support/users/susanna961/) - 3 - 2 - [1 year, 7 months ago](https://wordpress.org/support/topic/outdated-critical-css/#post-18120941) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Failed to generate Critical CSS](https://wordpress.org/support/topic/failed-to-generate-critical-css-100/) - Started by: [samcheung729](https://wordpress.org/support/users/samcheung729/) - 4 - 4 - [1 year, 7 months ago](https://wordpress.org/support/topic/failed-to-generate-critical-css-100/#post-18114568) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Jetpack Boost](https://wordpress.org/support/topic/jetpack-boost-13/) - Started by: [dustintoland](https://wordpress.org/support/users/dustintoland/) - 4 - 5 - [1 year, 6 months ago](https://wordpress.org/support/topic/jetpack-boost-13/#post-18125212) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [Critical CSS Loading Fails](https://wordpress.org/support/topic/critical-css-loading-fails/) - Started by: [cornerview](https://wordpress.org/support/users/cornerview/) - 5 - 4 - [1 year, 7 months ago](https://wordpress.org/support/topic/critical-css-loading-fails/#post-18102183) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [x-jetpack-boost-cache: miss, only home is hit](https://wordpress.org/support/topic/x-jetpack-boost-cache-miss-only-home-is-hit/) - Started by: [antoniomanco](https://wordpress.org/support/users/antoniomanco/) - 5 - 8 - [1 year, 7 months ago](https://wordpress.org/support/topic/x-jetpack-boost-cache-miss-only-home-is-hit/#post-18107619) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [New Jetpack boost plugin 3.5.2. caused big probs](https://wordpress.org/support/topic/new-jetpack-boost-plugin-3-5-2-caused-big-probs/) - Started by: [emjaylan](https://wordpress.org/support/users/emjaylan/) - 2 - 2 - [1 year, 7 months ago](https://wordpress.org/support/topic/new-jetpack-boost-plugin-3-5-2-caused-big-probs/#post-18086233) - [emjaylan](https://wordpress.org/support/users/emjaylan/) * - [CSS](https://wordpress.org/support/topic/css-246/) - Started by: [knoxyknoxy](https://wordpress.org/support/users/knoxyknoxy/) - 4 - 5 - [1 year, 7 months ago](https://wordpress.org/support/topic/css-246/#post-18106939) - [Pete (a11n)](https://wordpress.org/support/users/dilirity/) * - [How to remove Schema related to Jetpack Boost](https://wordpress.org/support/topic/how-to-remove-schema-related-to-jetpack-boost/) - Started by: [whitevanweddingco](https://wordpress.org/support/users/whitevanweddingco/) - 3 - 4 - [1 year, 7 months ago](https://wordpress.org/support/topic/how-to-remove-schema-related-to-jetpack-boost/#post-18100694) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [Tiled mosaic causing /null 404’s](https://wordpress.org/support/topic/tiled-mosaic-causing-null-404s/) - Started by: [squire2k](https://wordpress.org/support/users/squire2k/) - 3 - 6 - [1 year, 5 months ago](https://wordpress.org/support/topic/tiled-mosaic-causing-null-404s/#post-18190158) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [「Critical CSS 生成に失敗しました」を繰り返します](https://wordpress.org/support/topic/%e3%80%8ccritical-css-%e7%94%9f%e6%88%90%e3%81%ab%e5%a4%b1%e6%95%97%e3%81%97%e3%81%be%e3%81%97%e3%81%9f%e3%80%8d%e3%82%92%e7%b9%b0%e3%82%8a%e8%bf%94%e3%81%97%e3%81%be%e3%81%99/) - Started by: [rasukarupiano](https://wordpress.org/support/users/rasukarupiano/) - 3 - 4 - [1 year, 7 months ago](https://wordpress.org/support/topic/%e3%80%8ccritical-css-%e7%94%9f%e6%88%90%e3%81%ab%e5%a4%b1%e6%95%97%e3%81%97%e3%81%be%e3%81%97%e3%81%9f%e3%80%8d%e3%82%92%e7%b9%b0%e3%82%8a%e8%bf%94%e3%81%97%e3%81%be%e3%81%99/#post-18100696) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [[NSFW] Critical CSS failed to generate](https://wordpress.org/support/topic/critical-css-failed-to-generate-2/) - Started by: [africshowbiz1](https://wordpress.org/support/users/africshowbiz1/) - 3 - 2 - [1 year, 7 months ago](https://wordpress.org/support/topic/critical-css-failed-to-generate-2/#post-18089985) - [Stef (a11n)](https://wordpress.org/support/users/erania-pinnera/) * - [Why regenerate your Critical CSS after a new post?](https://wordpress.org/support/topic/why-regenerate-your-critical-css-after-a-new-post/) - Started by: [PPNSteve](https://wordpress.org/support/users/ppnsteve/) - 4 - 3 - [1 year, 7 months ago](https://wordpress.org/support/topic/why-regenerate-your-critical-css-after-a-new-post/#post-18100698) - [Tamirat B. (a11n)](https://wordpress.org/support/users/tamirat22/) * - [❗️Failed to generate Critical CSS](https://wordpress.org/support/topic/%e2%9d%97%ef%b8%8ffailed-to-generate-critical-css-2/) - Started by: [jlou65535](https://wordpress.org/support/users/jlou65535/) - 4 - 8 - [1 year, 7 months ago](https://wordpress.org/support/topic/%e2%9d%97%ef%b8%8ffailed-to-generate-critical-css-2/#post-18102191) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [❗️Failed to generate Critical CSS](https://wordpress.org/support/topic/%e2%9d%97%ef%b8%8ffailed-to-generate-critical-css/) - Started by: [kristenb215](https://wordpress.org/support/users/kristenb215/) - 6 - 7 - [1 year, 7 months ago](https://wordpress.org/support/topic/%e2%9d%97%ef%b8%8ffailed-to-generate-critical-css/#post-18118153) - [Alin (a11n)](https://wordpress.org/support/users/alinclamba/) * - [Submenu toggle gone with concatenate JS](https://wordpress.org/support/topic/submenu-toggle-gone-with-concatenate-js/) - Started by: [noseknowsnonotes](https://wordpress.org/support/users/noseknowsnonotes/) - 3 - 3 - [1 year, 8 months ago](https://wordpress.org/support/topic/submenu-toggle-gone-with-concatenate-js/#post-18059993) - [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/) * - [Jet Pack Cache Site. (not working)](https://wordpress.org/support/topic/jet-pack-cache-site-not-working/) - Started by: [rompstar](https://wordpress.org/support/users/rompstar/) - 3 - 5 - [1 year, 6 months ago](https://wordpress.org/support/topic/jet-pack-cache-site-not-working/#post-18133054) - [hobbybiker](https://wordpress.org/support/users/hobbybiker/) * - [Request for Refund Due to Site Issues Caused by Jetpack Boost](https://wordpress.org/support/topic/request-for-refund-due-to-site-issues-caused-by-jetpack-boost/) - Started by: [javierproaudio](https://wordpress.org/support/users/javierproaudio/) - 2 - 1 - [1 year, 8 months ago](https://wordpress.org/support/topic/request-for-refund-due-to-site-issues-caused-by-jetpack-boost/#post-18046513) - [Adnan Haque (a11n)](https://wordpress.org/support/users/adnan007/) *   [←](https://wordpress.org/support/plugin/jetpack-boost/page/3/?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) 4 [5](https://wordpress.org/support/plugin/jetpack-boost/page/5/?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/5/?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/)