Title: [Hummingbird Performance - Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN] Support - page 20 | WordPress.org --- # [Hummingbird Performance - Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN] Support Search for: [Log in to Create a Topic](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Fplugin%2Fhummingbird-performance%2Fpage%2F20%2F%3Foutput_format%3Dmd&locale=en_US) [←](https://wordpress.org/support/plugin/hummingbird-performance/page/19/?output_format=md) [1](https://wordpress.org/support/plugin/hummingbird-performance/?output_format=md) [2](https://wordpress.org/support/plugin/hummingbird-performance/page/2/?output_format=md) [3](https://wordpress.org/support/plugin/hummingbird-performance/page/3/?output_format=md)… [19](https://wordpress.org/support/plugin/hummingbird-performance/page/19/?output_format=md) 20 [21](https://wordpress.org/support/plugin/hummingbird-performance/page/21/?output_format=md)… [40](https://wordpress.org/support/plugin/hummingbird-performance/page/40/?output_format=md) [41](https://wordpress.org/support/plugin/hummingbird-performance/page/41/?output_format=md) [42](https://wordpress.org/support/plugin/hummingbird-performance/page/42/?output_format=md) [→](https://wordpress.org/support/plugin/hummingbird-performance/page/21/?output_format=md) - Topic - Participants - Replies - Last Post * - [4 of your cache types don’t meet the recommended expiry period of 1 year.](https://wordpress.org/support/topic/4-of-your-cache-types-dont-meet-the-recommended-expiry-period-of-1-year/) - Started by: [broadsword81](https://wordpress.org/support/users/broadsword81/) - 3 - 2 - [5 years, 8 months ago](https://wordpress.org/support/topic/4-of-your-cache-types-dont-meet-the-recommended-expiry-period-of-1-year/#post-13620467) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) * - [Hummingbird broke my site](https://wordpress.org/support/topic/hummingbird-broke-my-site/) - Started by: [Basit](https://wordpress.org/support/users/basitbasit11333/) - 3 - 2 - [5 years, 8 months ago](https://wordpress.org/support/topic/hummingbird-broke-my-site/#post-13620466) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) * - [Transparent PNG Image issue](https://wordpress.org/support/topic/transparent-png-image-issue/) - Started by: [TheJaredIsham](https://wordpress.org/support/users/thejaredisham/) - 4 - 8 - [5 years, 8 months ago](https://wordpress.org/support/topic/transparent-png-image-issue/#post-13574367) - [Saurabh – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support7/) * - [Too many logs use up CPU](https://wordpress.org/support/topic/too-many-logs-use-up-cpu/) - Started by: [温唯](https://wordpress.org/support/users/unbosomjam/) - 1 - 1 - [5 years, 9 months ago](https://wordpress.org/support/topic/too-many-logs-use-up-cpu/#post-13545761) - [温唯](https://wordpress.org/support/users/unbosomjam/) * - [Browser cache](https://wordpress.org/support/topic/browser-cache-7/) - Started by: [marcello.brunaldi](https://wordpress.org/support/users/gamma42/) - 2 - 2 - [5 years, 8 months ago](https://wordpress.org/support/topic/browser-cache-7/#post-13576415) - [Amin – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support2/) * - [Understanding Defer Options](https://wordpress.org/support/topic/understanding-defer-options/) - Started by: [jamesprw](https://wordpress.org/support/users/jamesprw/) - 3 - 5 - [5 years, 8 months ago](https://wordpress.org/support/topic/understanding-defer-options/#post-13549631) - [jamesprw](https://wordpress.org/support/users/jamesprw/) * - [Cache headers](https://wordpress.org/support/topic/cache-headers-3/) - Started by: [margomm](https://wordpress.org/support/users/margomm/) - 3 - 5 - [5 years, 8 months ago](https://wordpress.org/support/topic/cache-headers-3/#post-13549716) - [Patrick – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport12/) * - [Why admin toolbar hidden?](https://wordpress.org/support/topic/why-admin-toolbar-hidden/) - Started by: [assisnal](https://wordpress.org/support/users/assisnal/) - 3 - 2 - [5 years, 8 months ago](https://wordpress.org/support/topic/why-admin-toolbar-hidden/#post-13551775) - [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/) * - [Automatic optimization made site speed super slow!](https://wordpress.org/support/topic/automatic-optimization-made-site-speed-super-slow/) - Started by: [shifaz](https://wordpress.org/support/users/shifaz/) - 3 - 2 - [5 years, 8 months ago](https://wordpress.org/support/topic/automatic-optimization-made-site-speed-super-slow/#post-13551769) - [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/) * - [Mobile PageSpeed score is very low even after all the optimization](https://wordpress.org/support/topic/mobile-pagespeed-score-is-very-low-even-after-all-the-optimization/) - Started by: [techgeek1](https://wordpress.org/support/users/techgeek1/) - 3 - 4 - [5 years, 8 months ago](https://wordpress.org/support/topic/mobile-pagespeed-score-is-very-low-even-after-all-the-optimization/#post-13555254) - [techgeek1](https://wordpress.org/support/users/techgeek1/) * - [CloudFlare cache 100%](https://wordpress.org/support/topic/cloudflare-cache-100/) - Started by: [ofmarconi](https://wordpress.org/support/users/ofmarconi/) - 3 - 4 - [5 years, 8 months ago](https://wordpress.org/support/topic/cloudflare-cache-100/#post-13549686) - [Amin – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support2/) * - [Cache not resetting as expected](https://wordpress.org/support/topic/cache-not-resetting-as-expected/) - Started by: [scooterlord](https://wordpress.org/support/users/scooterlord/) - 6 - 10 - [5 years, 8 months ago](https://wordpress.org/support/topic/cache-not-resetting-as-expected/#post-13591917) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) * - [Issues with Oxygen Page Builder](https://wordpress.org/support/topic/issues-with-oxygen-page-builder/) - Started by: [mehranattari](https://wordpress.org/support/users/mehranattari/) - 4 - 6 - [5 years, 8 months ago](https://wordpress.org/support/topic/issues-with-oxygen-page-builder/#post-13561977) - [Laura – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support8/) * - [Hummingbird causing “Uncaught Error: Class PXMI_Hash_Record not found](https://wordpress.org/support/topic/hummingbird-causing-uncaught-error-class-pxmi_hash_record-not-found/) - Started by: [mjgilbert](https://wordpress.org/support/users/mjgilbert/) - 3 - 3 - [5 years, 9 months ago](https://wordpress.org/support/topic/hummingbird-causing-uncaught-error-class-pxmi_hash_record-not-found/#post-13509677) - [mjgilbert](https://wordpress.org/support/users/mjgilbert/) * - [Browser Caching is not working properly](https://wordpress.org/support/topic/browser-caching-is-not-working-properly-9/) - Started by: [abonny](https://wordpress.org/support/users/abonny/) - 2 - 2 - [5 years, 9 months ago](https://wordpress.org/support/topic/browser-caching-is-not-working-properly-9/#post-13504963) - [abonny](https://wordpress.org/support/users/abonny/) * - [Do I still need these plugin if I am using “LiteSpeed Cach”?](https://wordpress.org/support/topic/do-i-still-need-these-plugin-if-i-am-using-litespeed-cach/) - Started by: [maxdarklighter](https://wordpress.org/support/users/maxdarklighter/) - 4 - 3 - [5 years, 9 months ago](https://wordpress.org/support/topic/do-i-still-need-these-plugin-if-i-am-using-litespeed-cach/#post-13540580) - [Luke Cavanagh](https://wordpress.org/support/users/lukefiretoss/) * - [MIME type (‘text/html’) is not a supported stylesheet MIME type](https://wordpress.org/support/topic/mime-type-text-html-is-not-a-supported-stylesheet-mime-type/) - Started by: [shifaz](https://wordpress.org/support/users/shifaz/) - 3 - 4 - [5 years, 9 months ago](https://wordpress.org/support/topic/mime-type-text-html-is-not-a-supported-stylesheet-mime-type/#post-13539784) - [Patrick – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport12/) * - [CDN font issue](https://wordpress.org/support/topic/cdn-font-issue/) - Started by: [jlawebdev](https://wordpress.org/support/users/jlawebdev/) - 4 - 6 - [5 years, 8 months ago](https://wordpress.org/support/topic/cdn-font-issue/#post-13549665) - [Amin – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support2/) * - [404 Errors for Pages](https://wordpress.org/support/topic/404-errors-for-pages-2/) - Started by: [synerjizzm](https://wordpress.org/support/users/synerjizzm/) - 4 - 6 - [5 years, 9 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13507260) - [synerjizzm](https://wordpress.org/support/users/synerjizzm/) * - [Please add separate cache for mobile](https://wordpress.org/support/topic/please-add-separate-cache-for-mobile/) - Started by: [theendfear](https://wordpress.org/support/users/theendfear/) - 4 - 3 - [5 years, 8 months ago](https://wordpress.org/support/topic/please-add-separate-cache-for-mobile/#post-13562807) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) * - [Browser caching error](https://wordpress.org/support/topic/browser-caching-error-2/) - Started by: [adrianrus9](https://wordpress.org/support/users/adrianrus9/) - 2 - 2 - [5 years, 9 months ago](https://wordpress.org/support/topic/browser-caching-error-2/#post-13508726) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) * - [Hummingbird Broke site layout](https://wordpress.org/support/topic/hummingbird-broke-site-layout/) - Started by: [hikesdaddy](https://wordpress.org/support/users/hikesdaddy/) - 2 - 2 - [5 years, 9 months ago](https://wordpress.org/support/topic/hummingbird-broke-site-layout/#post-13508731) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) * - [Clear Cache causes 500 error on load](https://wordpress.org/support/topic/clear-cache-causes-500-error-on-load/) - Started by: [kvieira90](https://wordpress.org/support/users/kvieira90/) - 4 - 9 - [5 years, 9 months ago](https://wordpress.org/support/topic/clear-cache-causes-500-error-on-load/#post-13493850) - [kvieira90](https://wordpress.org/support/users/kvieira90/) * - [Hummingbird REST API route errors](https://wordpress.org/support/topic/hummingbird-rest-api-route-errors/) - Started by: [katmacau](https://wordpress.org/support/users/katmacau/) - 4 - 6 - [5 years, 9 months ago](https://wordpress.org/support/topic/hummingbird-rest-api-route-errors/#post-13511257) - [Patrick – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport12/) * - [Refused to apply style from …hummingbird.css](https://wordpress.org/support/topic/refused-to-apply-style-from-hummingbird-css/) - Started by: [nanny7](https://wordpress.org/support/users/nanny7/) - 2 - 2 - [5 years, 9 months ago](https://wordpress.org/support/topic/refused-to-apply-style-from-hummingbird-css/#post-13508725) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) * - [Hummingbird stuck on 99% site testing](https://wordpress.org/support/topic/hummingbird-stuck-on-99-site-testing/) - Started by: [ltribble](https://wordpress.org/support/users/ltribble/) - 3 - 2 - [5 years, 9 months ago](https://wordpress.org/support/topic/hummingbird-stuck-on-99-site-testing/#post-13489537) - [Dimitris – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support6/) * - [Site showing insecure since installing Hummingbird](https://wordpress.org/support/topic/site-showing-insecure-since-installing-hummingbird/) - Started by: [carodavies](https://wordpress.org/support/users/carodavies/) - 3 - 3 - [5 years, 9 months ago](https://wordpress.org/support/topic/site-showing-insecure-since-installing-hummingbird/#post-13457891) - [Saurabh – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support7/) * - [My Mini Cart is not working since Hummingbird Cache is started](https://wordpress.org/support/topic/my-mini-cart-is-not-working-since-hummingbird-cache-is-started/) - Started by: [mitchelly](https://wordpress.org/support/users/mitchelly/) - 3 - 9 - [5 years, 9 months ago](https://wordpress.org/support/topic/my-mini-cart-is-not-working-since-hummingbird-cache-is-started/#post-13461232) - [mitchelly](https://wordpress.org/support/users/mitchelly/) * - [gzip not working for 2 file types](https://wordpress.org/support/topic/gzip-not-working-for-2-file-types/) - Started by: [nanny7](https://wordpress.org/support/users/nanny7/) - 4 - 10 - [5 years, 9 months ago](https://wordpress.org/support/topic/gzip-not-working-for-2-file-types/#post-13487121) - [Saurabh – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support7/) * - [Mixed content error](https://wordpress.org/support/topic/mixed-content-error-22/) - Started by: [zoecorkhill](https://wordpress.org/support/users/zoecorkhill/) - 4 - 8 - [5 years, 9 months ago](https://wordpress.org/support/topic/mixed-content-error-22/#post-13508723) - [Predrag – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support1/) *   [←](https://wordpress.org/support/plugin/hummingbird-performance/page/19/?output_format=md) [1](https://wordpress.org/support/plugin/hummingbird-performance/?output_format=md) [2](https://wordpress.org/support/plugin/hummingbird-performance/page/2/?output_format=md) [3](https://wordpress.org/support/plugin/hummingbird-performance/page/3/?output_format=md)… [19](https://wordpress.org/support/plugin/hummingbird-performance/page/19/?output_format=md) 20 [21](https://wordpress.org/support/plugin/hummingbird-performance/page/21/?output_format=md)… [40](https://wordpress.org/support/plugin/hummingbird-performance/page/40/?output_format=md) [41](https://wordpress.org/support/plugin/hummingbird-performance/page/41/?output_format=md) [42](https://wordpress.org/support/plugin/hummingbird-performance/page/42/?output_format=md) [→](https://wordpress.org/support/plugin/hummingbird-performance/page/21/?output_format=md) * ![](https://ps.w.org/hummingbird-performance/assets/icon-256x256.gif?rev=2633221) * [Hummingbird Performance - Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN](https://wordpress.org/plugins/hummingbird-performance/) * [Frequently Asked Questions](https://wordpress.org/plugins/hummingbird-performance/#faq) * [Support Threads](https://wordpress.org/support/plugin/hummingbird-performance/) * [Active Topics](https://wordpress.org/support/plugin/hummingbird-performance/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/hummingbird-performance/unresolved/) * [Reviews](https://wordpress.org/support/plugin/hummingbird-performance/reviews/)