NitroPack is a new type of performance optimization plugin. It does the optimizations in the cloud which makes it very lightweight, compared to standard caching plugins NitroPack has much lower overhead on your CPU.
Configuration of the plugin requires no technical knowledge as all you need to do is select your desired optimization level: Standard, Medium, Strong or Ludicrous.
NitroPack uses a wide array of techniques to achieve the best possible automated optimization on your website based on the selected optimization level.
By using NitroPack you get the following (typically paid in other plugins) functionalities for free without the need of any additional configuration:

  • Amazon CloudFront CDN – your static assets are automatically served from a CDN based on Amazon’s CloudFront service
  • Image optimization – all of your images are automatically optimized and converted to WebP
  • Cache warmup – We will keep your most important pages optimized at all times

Due to its revolutionary design NitroPack offers some unique features and benefits like:

  • Cache invalidation – cache files in NitroPack can be invalidated instead of purged, which means NitroPack will keep serving your visitors from cache until while a fresh copy of the cache is being generated in the background. This helps you in high traffic situations (e.g. campaigns) allowing you to keep updating your site while still serving cache to your clients, keeping your site fast.
  • Critical CSS tailored to each of your unique layouts – typically plugins that provide critical CSS functionality will prepare a single critical CSS file per post type. However, you may have multiple pages with the same post type but different layouts. NitroPack detects this and generates unique critical CSS for each unique layout. Oh, and because desktop and mobile devices have vastly different viewports NitroPack will use different critical CSS for each device type as well 😉
  • Optimize resources linked statically into your theme files – NitroPack will discover and optimize all resources linked into your theme, even ones that come hardcoded into your CSS files (even if they are multiple levels down an @import chain)
  • No risk of damaging your original site files – NitroPack works on copies of your site files, so even if an optimization goes bad you can simply purge your cache to start over, or disable NitroPack in which case your site goes back to the state it was in before activating our plugin

Key features

  • Minify HTML
  • Minify CSS files and inline CSS defined in style tags and attributes
  • Minify JavaScript files and inline script tags
  • HTML, CSS and JavaScript compression
  • Optimize images
  • Convert to WebP
  • Lazy load images (including CSS background images)
  • Lazy load iframes
  • Amazon CDN
  • Cloudflare integration
  • Sucuri integration
  • Generic reverse proxy integration (NGINX, Varnish, etc.)
  • Image previews for YouTube embeds
  • Defer CSS and JavaScript
  • Font rendering optimization
  • DNS prefetch
  • Compatible with mobile, tablet and desktop devices out of the box
  • Multisite ready
  • Support for scheduled posts
  • eCommerce compatibility
  • Multilingual support
  • Easy setup
  • Advanced resource loading mechanism
  • Resource preloading using web workers
  • Automatic cache management – NitroPack will automatically update its cache files when you update content on your site
  • Option to exclude certain pages from being cached
  • Option to exclude certain resources from being optimized
  • Option to ignore URL parameters that do not modify the content of your pages (e.g. campaign parameters like utm_source, utm_campaign, etc.)
  • No database connection needed

NitroPack and Campaigns

There are two major issues when running a campaign – the first is that each visitor hits your server with a unique URL request and the second issue is that you will lose your cache if you update content on your site.
NitroPack has two very powerful features that help you survive during such high traffic situations whether you are running a big campaign or your site suddenly becomes trending.

  1. NitroPack recognizes campaign parameters in the URL and ignores them when looking up a cache file for the campaign request.
  2. Cache invalidation – Typically when you update content on your site caching plugins have to purge their cache and start rebuilding it. However, this may impact user experience when a purge occurs during a high traffic period because your visitors will no longer be served from cache and your server will have to work extra hard to generate new cache files. NitroPack solves this by invalidating its cache, instead of purging, which means it starts refreshing the cache files in the background while your clients are still being served the slightly outdated cache files.


  • Connect your store
  • Dashboard - see and manage the data in your


After you have installed NitroPack IO, you will need an account at
Once you have registered and added your site simply use the provided Site ID and Site Secret to connect the plugin to our service. You can find these keys in the “Connect Your Website” section in your user panel at


Does NitroPack modify site files?

No. NitroPack works on copies of your site files. However, it does modify your wp-config.php file if WP_CACHE is not enabled yet.

I installed NitroPack but my pages are still slow. Why?

After installing and activating NitroPack, you need to open its settings page and connect it with our cloud service using your Site ID and Site secret.

Why my scores are still low after connecting NitroPack?

After connecting NitroPack you need to select your desired optimization mode – Standard, Medium, Strong or Ludicrous. Once you do that, please visit your home page and allow NitroPack a minute to prepare an optimized version of your page. You can then run the tests again.

How long does it take for pages to get optimized

It usually takes several seconds for a page to become optimized.

Can I use another page caching plugin and NitroPack at the same time?

WordPress is designed in a way that you can use only a single page cache solution at a time. Such is the case with other page cache solutions too. You can use other non-page cache optimization solutions perfectly well with (e.g. ShortPixel, database optimization plugins, etc.).

What if I have a question?

You can contact us anytime at

Will NitroPack slow down my server?

No, NitroPack is designed to be very lightweight and adds no CPU overhead to your server.


28 maja, 2020
I don't fully understand how it all works, but my god does it work :D. Also, I had a small issue I really couldn't figure out, and they fixed it very quickly. Fantastic service.
25 maja, 2020
I heard about Nitropack from a few other digital agency owners in my network. They raved about its speed capabilities, showing before and after Pingdom screenshots that were crazy impressive. They also warned that there are always a few kinks to work out at the beginning with Nitropack, as is to be expected with any serious caching and speed optimization plugin. All of the above has held true. My site (and that of my clients) is running on A+ scores and loading in a second or less on the Pingdom speed test. Before all the grades were C- at best, and loading in 3-4 seconds. Which wasn't the end of the world, but I'm super super happy with the improvements! There have been a few speed bumps along the way as I expected, as well. Mostly related to payment forms, excluding the proper scripts to make sure Stripe registers the payment, etc. But Nitropack's support has been EXTREMELY responsive and helpful in getting all of these resolved. I've reached out to them probably 5-6 times in the last couple of weeks and they're super targeted every time in helping out, adjusting settings, etc. I expected that these kinks would arise, it's just the nature of such things, so it doesn't affect my opinion of the plugin. I love having Nitropack, and I'm excited to use it in my agency to make my offering better!
22 maja, 2020
God bless you! This is an awesome plugin. I am using it for first time on two websites, and both are working super awesome even with the free plan. Best regards!!! Keep the grate work. You should make some plans for developers that could use it for many websites and pay some tax 🙂
12 maja, 2020
I rate this as the joint number 1 plugin that all WordPress users should be using. I used to use a combination of plugins to achieve probably about half the performance gains I get by using this one plugin Nitropack. Don't get me wrong the plugins I used to use were good and are the best examples of their function available, but that changed when i installed Nitropack, It is on another level altogether. I'm guessing like 90% of you who use premium optimisation plugins have a set up like what I used to use: WP Rocket or W3 Total Cache for general caching Smush, Imagify, or ShortPixel for image optimisation WP Optimise, Autoptimise and other weird and wonderful plugins to eek out the last bits of performance gains you could find... Well like you, I was the same, and still getting terrible scores B's & C's, siteloading in 4 seconds+, errors on google page speeds and more. Then I installed Nitropack and after a few bumps in the road, I now have a site loading in approx 1.5 seconds (this is HUGE improvement for my site) 95+ mobile page compared score compared to 5 orignially and 99+ desktop score compared to 24 on GPI! I have also been getting weekly updates from Simon who is my customer tech lead and he has been awesome since he took charge of my account offering weekly updates, reviewing my account and looking to see where (if any) more improvements can be made! Is it expensive...from face value you could think so, from results definitely not - And remember you are actually saving by not having to use 3 or 4 other plugins and their prices. Forgive me for the long ranting positive review, but I have been pulling my hair out over trying to optimise my site reading hours and hour of articles, wasting money and getting nowhere to now finally getting it to a place where I am happy! So i need to make sure they are successful so they are around for the long haul Awesome product Nitropack and awesome team - keep up the great work! For those that are interested in what my other joint best plugins was...for me, it has to be All in One WP Migration another really innovative plugin.
8 maja, 2020
101 percent terrible customer support and some other things that needs improvements like you need to ask them to delete the one free site that you can attach to your account. sometimes the domain is already registered even if youre not yet registering it and if you complain it will take years for them to reply. with regards to deleting the one domain. i need this functionality as a developer so i can test my clients site so i can recommend for the purchase after they see the results.
Read all 23 reviews

Contributors & Developers

“NitroPack” is open source software. The following people have contributed to this plugin.


Translate “NitroPack” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • 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