Title: Caching bad/missing CSS
Last modified: July 11, 2019

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# Caching bad/missing CSS

 *  Resolved [littletaller](https://wordpress.org/support/users/littletaller/)
 * (@littletaller)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/caching-bad-missing-css/)
 * On occasion (a few times a month) we get alerted by a user on our site that our
   site is jacked up. It can range from it’s missing all CSS to it’s just missing
   some CSS. If we clear Hummingbird cache, the problem gets resolve.
 * This happens at random and at times when we’ve made no changes to the site structure,
   plugins, the theme – specifically the CSS – or content.
 * Is this a Hummingbird issue? Or is Hummingbird likely to cache CSS that may didn’t
   load cleanly to being with? I don’t want to chase the wrong thing here.
 * Help?

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Anton Vanyukov](https://wordpress.org/support/users/vanyukov/)
 * (@vanyukov)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/caching-bad-missing-css/#post-11720790)
 * Hi [@littletaller](https://wordpress.org/support/users/littletaller/),
 * It’s hard to say without seeing the actual issue. In the upcoming update HB will
   allow to set an expiry time for cached files, so if it’s Hummingbird related,
   you will be able to fix it by setting an expiration date. But it could also be
   hosting related.
 * If you experience the issue again, please make a screenshot from the browser 
   console and post it here.
 * Best regards,
    Anton
 *  Plugin Support [Dimitris – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support6/)
 * (@wpmudev-support6)
 * [6 years, 9 months ago](https://wordpress.org/support/topic/caching-bad-missing-css/#post-11773166)
 * Closing this topic due to recent inactivity.
    Feel free to post back any update
   or create a new topic and we’ll be glad to carry on troubleshooting. 🙂
 * Thank you,
    Dimitris

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Caching bad/missing CSS’ is closed to new replies.

 * ![](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)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/hummingbird-performance/unresolved/)
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 * 2 replies
 * 3 participants
 * Last reply from: [Dimitris – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support6/)
 * Last activity: [6 years, 9 months ago](https://wordpress.org/support/topic/caching-bad-missing-css/#post-11773166)
 * Status: resolved