NitroPack – Cache & Speed Optimization for Core Web Vitals, Defer CSS & JavaScript, Lazy load Images


Speed up your WordPress site, achieve a 90+ PageSpeed Insights score, and pass your Core Web Vitals with NitroPack. NitroPack is the leading all-in-one site speed optimization solution that helps hundreds of thousands of websites globally rank higher on Google, increase conversions and grow their business. It combines all the features a website owner might need for a fast website – аdvanced caching, complete image optimization, code optimization, built-in global CDN, lazy loading, and more.

NitroPack performs all optimizations in the cloud. So unlike traditional caching plugins, we won’t add any overhead CPU and slow down your site unnecessarily. NitroPack is fully automated, so all it takes to set up is a few clicks. Once connected, it will work seamlessly, keeping your site optimized and fast 24/7.

Speed up your site with NitroPack


NitroPack ensures a 90+ cache hit ratio with tons of advanced features that enhance your current caching system and offer you uninterrupted stability during high-traffic situations.

  • Automatic Cache Warmup
  • Smart invalidation
  • Device and cookie-aware caching
  • Built-in browser cache


The powerful optimization set of NitroPack allows you to concatenate your code structure: you can minify, compress, and merge your HTML, CSS, and JS files – all with just a click of a button.


Say goodbye to the frustration of manual adjustments and external tools. With NitroPack, image optimization is as simple as pressing a button.Once installed, prepare to be wowed as your image file sizes shrink by up to 7x while preserving their quality, allowing your content to be served at lightning speed. And the best part? NitroPack’s magic extends to background images too! Let your images tell their stories without dragging your site’s performance down.

  • Automatic image optimization
  • WebP conversion
  • Lossy and lossless image compression
  • Advanced lazy loading
  • Preemptive image sizing
  • Adaptive image sizing


Improve your site’s speed by optimizing all your fonts. No matter the web font you’re using, Nitropack allows you to defer the font loading and reduce the file size by over 60% by removing unused glyphs. Keep your site looking unique without compromising speed and performance.


NitroPack offers a Cloudflare CDN as part of the package. With hundreds of servers stationed across 100+ countries, your site and resources are delivered quickly to all visitors, no matter their location.

  • Global CDN
  • GZIP and Brotli Compression
  • HTTP/2 Compatibility

To view a complete list of NitroPack’s features, visit the feature page.


NitroPack integrates seamlessly with the most popular WordPress plugins and themes to provide a smooth user experience:


  • WooCommerce
  • Yoast SEO
  • Contact Form 7
  • Elementor
  • Divi Builder
  • Gravity Forms
  • All in One SEO Pack
  • RankMath
  • Thrive Architect
  • And more


  • Astra
  • GeneratePress
  • Avada
  • BeTheme
  • Hello Elementor
  • Divi Theme
  • And more


Integrating a new tool into your tech stack can be concerning due to stability issues. NitroPack’s Safe Mode lets you test features without affecting your visitor’s experience. NitroPack works exclusively on copies of your site files, ensuring no change impacts your original files.

☎️ 24/7 SUPPORT:

All NitroPack customers get access to expert support and an extensive knowledge base for help with general and technical site speed issues. Our support is available round the clock.


Your safety is our priority. NitroPack is SOC2 Type 2 compliant and ISO 27001 certified, internationally recognized standards for managing information security. We have a devoted team of security specialists working round-the-clock to uphold the highest level of security and compliance. By implementing industry-leading practices, we ensure your data remains secure and your peace of mind intact, 24/7.


Join our Facebook Community.
Learn from our tutorials on YouTube Channel.
Or rate us on WordPress 🙂


  • Combine PSI and CWV
  • Advanced caching
  • Complete Image optimization stack
  • Lean code = fast site
  • The only solution you will ever need


  1. Click the “Download” button on this page. You’ll get a .zip file, which you can save on your computer.
  2. Go to your website’s dashboard, open the “Plugins” menu and click “Add new”. After that, choose the file and click “Install Now”
  3. You now need to connect your website to NitroPack. Simply go to and create an account. After you log in, you’ll see a “Connect Your Website” menu on the left. There, you’ll find a API Key and API Secret Key.
  4. Go back to your website’s dashboard. Click “Settings” and find the NitroPack option. Finally, enter your API Key and API Secret Key and click “Connect to NitroPack”.

That’s all there is to it!


Why does speed matter?

Speed directly impacts user experience and SEO performance. Fast sites encourage higher engagement and conversions, and they are favored by search engine rankings. With mobile browsing prevalent, speed load times are crucial. Additionally, a faster website improves overall efficiency and can better handle high traffic. Hence, optimizing speed is integral for a successful online presence.

Why is NitroPack better than other caching solutions?

NitroPack stands above traditional caching plugins due to its comprehensive optimization techniques and intelligent cloud infrastructure, which are not limited to your WordPress hosting server. Furthermore, according to the Core Web Vitals technology report, NitroPack holds the highest pass rate and Lighthouse score and produces the lightest pages, which is a testament to its superior performance.

Can NitroPack replace all caching, code and image optimization, and speed plugins?

Yes! NitroPack is an all-in-one solution for optimizing websites. It implements dozens of speed optimization techniques, from simple minification to JS delay and critical CSS generation for frontend optimization and built-in CDN for backend optimization. There is no need to run another plugin along with NitroPack to get all the benefits of effective site speed optimization.

Is NitroPack suitable for all websites?

From service websites to blogs to advanced ecommerce platforms – NitroPack provides optimal speed and performance optimization for any and all WordPress websites.

Is WooCommerce supported?

Yes, NitroPack is fully compatible with WooCommerce. It intelligently caches and optimizes eCommerce websites without disrupting their functionality. WooCommerce site owners can also leverage special features like the Ecommerce Cart Cache, which ensures page optimization persists even when items are added to the cart.

Does NitroPack optimize mobile pages also?

Absolutely, NitroPack optimizes both desktop and mobile pages, ensuring a fast, smooth experience across all devices.

How long does it take to see the results from NitroPack?

Most optimizations deliver immediate results post-installation. However, the impact on Core Web Vitals is visible after 28 days, the necessary period for collecting real user data. Real user data refers to the information gathered from actual user interactions on your website, providing a true reflection of user experience and performance metrics.

Which WordPress versions are supported?

NitroPack works with 4.7 or higher WordPress versions. Please visit the plugin update log for more details.

Will the plugin interfere with other plugins or widgets?

NitroPack is designed to work seamlessly with most popular plugins and widgets. In the rare case of conflicts, our support team is ready to assist around the clock.

This sounds too good to be true. Can I test the results?

Sure! Go ahead and get started on our free plan to see our speed and performance optimizations in action.

I don’t have time to deal with this, can you help me?

Yes, our dedicated support team is available to assist you with setup and management, ensuring a hassle-free, time-saving experience.

Does the plugin use any third-party sources?

Yes, the plugin uses the Intercom Chat Widget, which serves as a third-party tool for support. If you have any questions or need assistance, feel free to reach out to our support team conveniently through the Intercom Chat Widget available on our plugin’s dashboard. Additionally, you can contact us via the NitroPack site.


9 febrewaris, 2024 3 antwurden
For small sites this is near instant results. Works, but is kind of expensive for most small sites. Skip the free version, it forces an ugly footer banner promo for the company. For larger sites, this is not so great. Tried to set this up on a larger ecom site and here are the issues that forced me to abandon the service. - Many visual/functional issues with things like drop downs, fly outs, etc. - Documentation is incomplete. The exclusions process is not very intuitive. Makes fixing issues difficult and forces you to use their support team. - Pageviews are counted against you even if your not running the service. Working through bugs I ran out of pageviews before we could go live. - Service was quick at first. Response in hours. Now it's a couple days before you get a response. They have good potential but need to work out the bugs within there system, finish documentation, and get better about their support response.
29 oktober, 2023 1 reakce
After trying all the usual and "well-known-recommended-everywhere" plugins for optimization, with less than satisfying results, especially on mobile, I finally tried this one, seeing that it was also sold as an option on WPEngine - I assumed they would not risk their reputation with a failing solution. Onboarding was flawless. Ater my account was created on Nitropack's website, I got immediate results without having to modify a single setting. And by immediate results, I mean mind blowing results ! I initially thought there must have been an error, because it was hard to believe. I had been debugging and simplifying the bloody site for the last two days, lots of legacy stuff, tons of unused scripts on all pages, css selector names as long as the arm, a DOM to make you choke, you name it ... Trying is believing. I my case it was flawless. 98 on PageSpeed Insights for perfomances on mobile with simulated 4G throttled bandwidth, despite a bloody DOM size of 1300 on the product page, a render blocking super heavy search engine script that seemed impossible to defer or async without side effects, a parallax full screen image, an image gallery with carousel for pictures swiping on mobile, and a carousel for testimonials, woohoo !... I did not expect that. 100 for Desktop, of course. Great hosting and object caching also helps. But without that plugin, results were still poor, around 60 on perfs for mobile. You can safely ditch your Autoptimize, Fast Velocity, WP Rocket, Minify, ShortPixel, whatever ... I did it with great joy, deleting @# ! plugins had never been such a glorious experience. This one plugin does it all, and there's a free plan with almost all the features of the pro plans. I used the free plan. Hats off to the great team at Nitro !
25 oktober, 2023 1 reakce
I've tried everything to speed up my small business website over the last few months - caches, Jetpack boost, deleting resource hogging plugins, optimizing images, minifying CSS etc. After a lot of work I managed to get my mobile Pagespeed score up from mid-50s to mid-60s. This plugin got it to 93 in one day! It's not just the scores either, the difference when I browse my own site is phenomenal too. It took a bit of tweaking the settings to make it work well, and broke the site once (but turning it off and on fixed it) but for the enormous improvement it is well worth a little setup time.
7 july, 2023
I had quite a few issues with my site being slow and not optimized well but after installing this plugin my speed went up to 94 on the first try. It didn't take very long to install and activate so I'd highly recommend this to anyone who is having issues optimizing their website.
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  • New Feature: Support for language variations based on browser language preferences
  • New Feature: Compatibility with CJ tracker
  • Improvement: Better compatibility with RaidBoxes
  • Bug fix: Fix issue with mobile detection on Kinsta
  • Bug fix: Resolve a nonce issue with the “Remind me later” button in notices


  • Improvement: Stability improvements


  • Improvement: Remove obsolete libraries
  • Improvement: Overall stability improvements


  • Bug fix: Resolve an issue if config exists but contains invalid API details


  • Bug fix: Various bug fixes and stability improvements


  • Improvement: Ability to pull multiple optimized pages at once for faster cache propagation
  • Improvement: Second layer of security on certain AJAX endpoints


  • Update: Change the style of some notices


  • Update: New support widget
  • Update: Safe Mode was renamed to Test Mode


  • New Feature: Added compatibility with Raidboxes
  • New Feature: Added base compatibility with Pantheon
  • Improvement: Separate mobile & desktop cache in SiteGround environment
  • Improvement: Overall stability improvements
  • Bug fix: Resolve a cache issue when GeotargettingWP is not in AJAX mode


  • Bug fix: Various bug fixes and stability improvements


  • Bug fix: Resolve a bug which caused issues with RankMath sitemaps


  • Bug fix: Resolve an issue for PHP versions older than 7.1
  • Bug fix: Resolve webhook error when the server is LiteSpeed


  • New Feature: Added compatibility with WPMU DEV hosting
  • Improvement: Faster webhook handling with less resource usage
  • Improvement: Improved automated cache purge logic
  • Improvement: Overall stability improvements
  • Bug fix: Resolve errors related to attaching the menu items


  • Bug fix: Resolve connection issues


  • Improvement: Move the plugin’s data directory into wp-content/cache/
  • Improvement: Automatically run cache warmup when the permalink structure has changed
  • Improvement: Automatically purge cache when the front page configuration is changed
  • Improvement: Overall stability improvements
  • Bug fix: Resolve fatal error when WCML is active
  • Bug fix: Resolve error when purging cache in WP-CLI mode
  • Bug fix: Fix typo in the diagnostics report


  • Update: Temporarily disable the changes related to Gravity Forms as further improvements are needed for optimal experience


  • New Feature: Added compatibility with Geotargeting WP
  • New Feature: Cache warmup now detects sitemap files automatically. Supported providers are: Yoast, RankMath, JetPack & Squirrly
  • Improvement: Detect categories of new posts more accurately for a more precise cache purge
  • Improvement: Automatically clear cache when WP Bakery’s custom CSS is updated
  • Improvement: Automatically clear cache when Elementor’s custom code is updated
  • Improvement: Resolve issues with gravity forms where forms could not be subitted after certain period of time
  • Improvement: Resolve issues with WPForms where forms could not be subitted after certain period of time
  • Improvement: Better compatibility with WPML’s WooCommerce options
  • Improvement: Ability to dismiss notifications
  • Improvement: Various improvements in the UI
  • Improvement: Overall stability improvements
  • Bug fix: Resolve issues when purging cache via WP-CLI


  • New Feature: Add support for additional domains
  • Bug fix: Resolve errors for undefined host in WP-CLI


  • Improvement: More reliable way to determine to current hostname
  • Improvement: Compatibility improvements with Cloudflare’s APO
  • Improvement: Compatibility with Advanced Math Captcha
  • Improvement: Added ability to localize the plugin
  • Improvement: Better compatibility with The Events Calendar to increase cache hit ratio
  • Improvement: Overall stability improvements
  • Bug fix: Remove incorrectly placed notices in the connect screen


  • Feature: Introduce a new features “Ecommerce Cart Cache” for WooCommerce sites
  • Improvement: Add new filter “nitropack_is_archive_page”
  • Improvement: Overall stability improvements


  • Improvement: Update the compatibility with SiteGround’s Dynamic Cache layer
  • Bug fix: Resolve cache bypass issues on LiteSpeed


  • Improvement: Better handling of healthchecks after LiteSpeed .htaccess configuration
  • Bug fix: Resolve an issue with sitemap XSL schemas
  • Bug fix: Resolve an issue AMP pages


  • Bug fix: Resolve an issue with activate/deactivate if opcache_reset is not available


  • New Feature: Completely compatible with LiteSpeed servers
  • Improvement: The help button is now an interactive widget
  • Improvement: Full compatibility with WPX Cloud
  • Improvement: Resolve an occasional issue with the cache layer on Pressable
  • Improvement: Overall stability improvements
  • Bug fix: Correctly purge cache when a post transitions to a draft state


  • Improvement: Add exclude for a healtcheck endpoint in Pagely
  • Bug fix: Resolve compatibility issues related to Aelia Currency Switcher
  • Bug fix: Resolve an issue causing settings to be reset to “Standard” mode


  • Improvement: Make the connection to our API servers even more stable
  • Improvement: Out of the box compatibility with Aelia Currency Switcher
  • Improvement: Implement a better way to check for Download Monitor URLs
  • Improvement: Overall stability improvements
  • Bug fix: Fix cases of missing elements in Thrive Theme


  • Improvement: Overall stability improvements
  • Bug fix: Fix ‘headers already sent’ error in CLI and WP_CRON modes
  • Bug fix: Fix cases of missing elements in Fusion Builder


  • New Feature: Compatibility with DreamPress hosting
  • Improvement: Full compatibility with Pressable’s caching layer
  • Improvement: Full compatibility with’s caching layer
  • Improvement: Overall stability improvements
  • Bug fix: Resolve an issue where separate URLs were incorrectly using the same cache files
  • Bug fix: Switching between prod and staging environments no-longer causes issues with cache sync


  • New Feature: Compatibility with Savii hosting
  • New Feature: Basic compatibility with Pressable’s caching layer
  • New Feature: Basic compatibility with Sucuri as a caching layer
  • New Feature: Admins can now receive notifications related to system events
  • Improvement: Improved compatibility with Cloudflare’s APO
  • Improvement: Improved compatibility with
  • Improvement: Overall stability/compatibility improvements
  • Improvement: A better way to detect the popular Cookie Notice plugin
  • Improvement: Compatibility with WP Engine’s Smart Plugin Updater
  • Bug fix: Resolve an issue when running on PHP 5.6


  • New Feature: Compatibility with Vimexx
  • Improvement: Make some of NitroPack’s requests even lighter weight
  • Bug fix: Resolve an issue which was preventing some admin actions from functioning correctly


  • Disable the compatibility with LiteSpeed servers as purging its cache with variation cookies isn’t working per spec


  • New Feature: Compatibility with Fastly
  • New Feature: Compatibility with Closte
  • New Feature: Compatibility with Beaver Builder’s cache purge
  • New Feature: Compatibility with the Cookie Notice plugin
  • New Feature: Add generic compatibility with LiteSpeed servers
  • Improvement: Better efficiency in the API calls leading to less overhead in admin operations
  • Improvement: Vastly better support for popular cache proxies, making a much better use of existing infrastructure
  • Improvement: Better compatibility with WP Engine
  • Improvement: Better compatibility with Kinsta
  • Improvement: Better compatibility with SiteGround
  • Improvement: Better compatibility with Pagely
  • Improvement: Better compatibility with Cloudways
  • Improvement: Better compatibility with Flywheel
  • Improvement: Clear existing proxy cache when NitroPack is activated or deactivated
  • Improvement: Show more helper messages to guide the administrator in resolving detected issues
  • Improvement: Prevent duplicate connections which were previously causing the cache to get out of sync
  • Improvement: More granular and accurate detection of inventory updates in WooCommerce
  • Improvement: The safe mode prompt is now on the deactivate step
  • Improvement: Handle a specific case of Cloudflare’s Flexible SSL coupled with a redirect
  • Bug fix: Resolve an issue with the WooCommerce PayPal Checkout Payment Gateway plugin
  • Bug fix: Various form submission issues have been resolved
  • Many bug fixes and stability improvements


  • Change: Bump up the tested-up-to version for WP 5.7
  • Bug fix: Resolve a constant already defined error
  • Bug fix: Resolve an issue with the positioning of the status dot in the admin bar


  • New Feature: Safe Mode toggle within the plugin’s dashboard
  • Improvement: Add support for an upcoming improvement in the compatibility with reverse proxies like Cloudflare and Sucuri
  • Improvement: Add a filter to allow the list of cacheable post types to be extended – nitropack_cacheable_post_types
  • Improvement: Better handling of WooCommerce price updates
  • Bug fix: Cache warmup was not being triggerd when posting a new article. This is resolved now.


  • Improvement: Faster cache purge via the webhook
  • Improvement: Purging/Invalidating cache via WP-CLI is now direct and provides better feedback of the result
  • Bug fix: Any cache purge was triggering full cache purge on the local server. This is now resolved.


  • Bug fix: Resolve an issue causing a fatal error related to undefined class name


  • New Feature: Compatibility with Cloudflare APO
  • Improvement: Better resilience to network related issues
  • Improvement: Faster cache purge
  • Improvement: Overall stability improvements
  • Deprecation: Removed the Invalidate All Cache option. The invalidate action is much better suited for single page invalidations.


  • Improvement: Performance improvements in content updates
  • Improvement: Better compatibility with Download Monitor


  • New feature: Extended WP-CLI compatibility with ability to purge/invalidate by URL or tag
  • New feature: Add a method for dynamically preventing automated purge/invalidate
  • Improvement: Compatibility with jQuery 3
  • Improvement: Better compatibility with SiteGround’s dynamic cache layer
  • Improvement: Overall stability improvements
  • Bug fix: Resolve an issue with undefined HTTP_HOST key


  • Bug fix: Resolve an issue with reverse proxy cache purge through the webhook


  • Improvement: Stability improvements


  • New Feature: Pagely compatibility
  • Improvement: Even better compatibility with WooCommerce’s Geolocate option
  • Improvement: More accurate sync with Avada’s date based containers
  • Improvement: Better compatibility with reverse proxies
  • Improvement: Stability improvements


  • New Feature: Much simpler and easier connect method
  • New Feature: Support a new “nitropack_meta_box” capability which allows you to grant access to cache purge on different user roles
  • Improvement: Better status notices
  • Improvement: Stability improvements


  • Improvement: Better compatibility with ShortPixel Adaptive Images 2.x
  • Improvement: Overall stability and performance improvements


  • Improvement: Handling of stock quantity changes in WooCommerce via the REST API
  • Improvement: Overall stability and performance improvements


  • Improvement: Better handling of stock quantity changes in WooCommerce
  • Improvement: Better handling of updates to non-public post types
  • Improvement: More efficient use of our API
  • Bug fix: Fix an issue with slow cache propagation after full purge


  • New feature: Add admin bar entry with quick links to useful actions like purge cache
  • New feature: Add WP-CLI methods for invalidating/purging cache
  • New feature: Add WP-CLI method for running cache warmup
  • Improvement: Automatically detect outdated cache files restored from a backup and do not serve them to clients
  • Improvement: Automatically detect connection issues and suggest steps to resolve these
  • Improvement: Automatically start optimizing after the plugin is connected successfully
  • Improvement: Performance improvements


  • Bug fix: Resolve a fatal error in the SDK on certain PHP versions


  • Improvement: Workaround for issue with communicating to our servers in LiteSpeed environments


  • Bug fix: Resolve an issue with domains starting with “www.” which was introduced in v1.3.9


  • New feature: Ability to connect/disconnect using WP-CLI
  • Improvement: Recognize updates to WooCommerce Cart Reports post types to reduce cache purges
  • Improvement: Better Ezoic compatibility
  • Bug fix: Resolve an issue with saving the compression status when configured manually
  • Overall stability improvements


  • New feature: Add support for local AJAX caching
  • Improvement: Better SiteGround compatibility
  • Improvement: Ezoic compatibility
  • Improvement: NGINX Helper compatibility
  • Bug fix: Resolve an issue which caused problems in WP CLI
  • Improvements in the automated cache purge
  • Overall stability improvements


  • Bug fix: Resolve an issue causing insufficient permissions error


  • Bug fix: Resolve an issue with nonces in REST requests


  • Improvement: Show instructions for configuring recommended hosting settings if needed
  • Improvement: Better detection of taxonomies and archive pages
  • Improvement: Better compatibility with ShortPixel
  • Improvement: Better WP Engine compatibility
  • Improvement: Updated nonce handling
  • Bug fix: Category pages were not being optimized if archive optimization was disabled. This is now fixed.
  • Bug fix: Fix an issue with custom cache expiration for The Events Calendar


  • Improvement: Better compatibility with Kinsta
  • Improvement: Improved handling of post status transiotions
  • Improvement: Allow optimizations for archive pages


  • Improvement: Optimize all post/page types by default ot avoid confusion why a certain URL is not optimized.
  • Improvement: Automatically refresh cache based on comment actions (posting, approving, unapproving, etc.)


  • Improvement: Workaround for an issue in the WP Engine environment which causes timeouts in certain network communication scenarios. This resolves slow post/page updates in the admin area.


  • Improvement: Nicer cache purge reason messages
  • Bug fix: Resolve an issue where the home page was not always updated after publishing new posts/pages


  • New feature: Option select which post types and taxonomies get optimized
  • New feature: Option to enable/disable the automated cache purges
  • New feature: Automatically warmup new posts/pages
  • New feature: Add meta box to allow cache purge/invalidate from the post/page edit screens
  • New feature: New and improved way of tracking relationships between pages allowing for smarter automated cache purges, which affect less cache files
  • Resolve layout issues in the admin panel on mobile
  • Add compatibility with GoDaddy’s managed WordPress hosting


  • Stability improvements


  • Synchronize the nonce and page cache life times
  • Improve cache synchronization when updating menu entries
  • Improve cache synchronization when making appearance customizations
  • Fix false “plugin conflict” error with WP Optimize
  • Stability improvements


  • Added support for Fusion Builder’s container expiration
  • Added compatibility with the Post Expirator plugin
  • Added compatibility with the Portfolio Sorting plugin
  • Stability improvements


  • Stability improvements


  • Improved cache management for scheduled posts
  • Fix cache expiration for posts scheduled for dates in the past
  • Better update handling


  • Stability improvements


  • Prevent crashes originating from missing functions.php file


  • Better handling of automated updates


  • Automatically update the advanced-cache.php file after plugin update


  • Performance and stability improvements


  • Initial release