Speed Kit


This WordPress plugin makes using Baqend Speed Kit a breeze. After activating the plugin, Speed Kit will be integrated into your WordPress to accelerate requests against it.

Baqend Speed Kit accelerates your existing website by rerouting the requests through Baqend’s caching infrastructure. Using the configuration described in this document, it works for any WordPress website and achieves a performance boost of typically 50-300%.


  • Accelerate your WordPress by 50-300 %
  • Automatically enable an offline mode
  • Browser support of over 80%
  • Automatically optimizes your images
  • Works for any website, whether for publishers, landing pages, e-commerce, brands, or agencies

Why Speed Kit?

Page load time is money. This is not only true for companies like Amazon that loses more than 1.3B USD in revenue per year, if their website is a 10th of a second slower. It is also true for publishers, whose business model depends on a user experience that facilitates consumption of as much content as possible. However, many brands, publishers, and e-commerce businesses have heterogeneous and complex technology stacks that make it extremely hard to tackle performance, scalability, and page load time. Novel browser technologies now offer a means of making web performance as simple as including a script.

Connect with Baqend


  • The Speed Kit landingpage. You can see your used traffic and quickly revalidate your website.
  • The Speed Kit settings tab. Here you can set a white- and blacklist to configure which pages should be handled by Speed Kit.
  • In the Speed Kit settings tab, you can also find settings for automatic Image Optimization.
  • In case you get lost, the Speed Kit help contains information on how to use this plugin.


  1. Log into your WordPress website.
  2. On the left menu, hover over “Plugins” and then click on “Add New”.
  3. In the Search Plugins box, type in “Speed Kit” and press the Enter key.
  4. You will see a list of search results which should include the Speed Kit plugin. Click on the “Install Now” button to install the plugin.
  5. After installing the plugin you will be prompted to activate it. Click on the “Activate Plugin” link.
  6. The Speed Kit plugin will now open and guide you through setup.


How does Speed Kit work?

Speed Kit adds a Service Worker to your WordPress which will be accessible from /sw.js. The Service Worker then reroutes all requests from your WordPress’s backend to a fast cache which is synchronized with your website.

How do I measure my speed up?

You can use our Page Speed Analyzer to do so. Simply enter the URL of your WordPress there after installing Speed Kit.

If you want to measure your speed up manually in your browser, read this article which shows you how to do so.

What is the difference between Speed Kit and traditional content delivery networks (CDNs)?

With Speed Kit, you get all the advantages of a CDN; in fact, Speed Kit uses a CDN under the hood. In addition, however, you also get the following benefits:

  • Your website becomes a Progressive Web App by default, i.e. users can keep using the website even if they lose their Internet connection temporarily.
  • Speed Kit can cache dynamic content such as your HTML file or user comments in addition to static content such as stylesheets or images; you decide how often Speed Kit refreshes its copy!
  • Speed Kit uses the browser cache which is located in the user’s device: Thus, Speed Kit serves data even faster than common CDN caches.
Why do I need SSL for Speed Kit?

Speed Kit is built on Service Workers, a new technology that is currently entering all major web browsers. Since Service Workers can only be enabled on SSL-secured websites, Speed Kit is also only available when SSL is turned on.

Is WooCommerce supported?

Yes! We have special integration features for WooCommerce which come automatically with this plugin.

When is Speed Kit active?

Speed Kit is caching content everywhere on your website except in the following cases:

  • You are logged in
  • You are using WooCommerce and have items in the shopping basket or on the wishlist
I cannot install or update the plugin

Probably the write permissions are not set correctly. The Service Worker needs to be stored in the root directory as sw.js. You need write permissions to the root directory to let the plugin do so.

How do I control Speed Kit?

You can use a white- and blacklist that controls which pages and resources are handled.

You can switch off Speed Kit via “Disable Speed Kit” in the Speed Kit > Settings menu.

If you have any questions, please contact us! We are happy to help you to create an optimal configuration for you!

Do I have to insert something into my HTML?

No. The plugin provides the full integration into your WordPress, including HTML.

Do I have to change my DNS settings?

No. Your website will still be served from your IP, traffic will be redirected invisibly to the user.

How much will Speed Kit cost for me?

The basic package of Speed Kit is always free for you. No bank details are required!

If your site has more traffic, you can activate a pay-as-you-go plan that scales with your site. You can always set a limit which may not be exceeded. If your WordPress’s traffic overruns this limit, Speed Kit simply stops handling your requests and they are executed by your backend again – your site remains online all the time without your users noticing anything.


Quick and easy to set up! Great result!

We are very happy with the result! We decided to try out the Speedkit plugin since we have a lot of videos and images which slowed down our site. It was easy to setup and greatly reduced our website’s loading time. Configuration of the plugin is optional and allows you to tweak it for your requirements like specifying which URLs should be handled by Speedkit. The setup guide on the Baqend website explains everything very well. Also, a base number of requests and traffic per month are free so you can test it to really see the improvement.

Wow amazing!

This plugin/service has reduced my page load time I am amazed by this plugin and the Baqend team GREAT work THANK YOU!

Read all 7 reviews

Contributors & Developers

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


“Speed Kit” has been translated into 2 locales. Thank you to the translators for their contributions.

Translate “Speed Kit” into your language.

Interested in development?

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


v1.11.3 (2018-10-8)

Bug Fixes

  • Fix support for Simple Cache
  • Fix support for WP Fastest Cache

v1.11.2 (2018-10-1)

Bug Fixes

  • Fix error while logging in to new apps

v1.11.1 (2018-9-25)

Bug Fixes

  • Fix redirect to settings page if not a Baqend admin (thanks to @glueckpress)
  • Fix Service Worker scope for unequal hosts of home_url & site_url
  • Fix usage of non-existing password attribute

v1.11.0 (2018-9-21)


  • Add link to login with token on registration
  • Rename “Getting Started” to “Overview”

Bug Fixes

  • Improve security of connect call
  • Improve stats for apps with exceeded limit

v1.10.5 (2018-8-24)

Bug Fixes

  • Hide dashboard widget for Plesk users

v1.10.4 (2018-8-20)

Bug Fixes

  • Fix bug with undefined page in is_on_baqend_admin
  • Fix redirect bug for Plesk users after activating the plugin
  • Limit cookie blacklisting to documents
  • Use URLs instead of prefixes for revalidation requests
  • Ensure triggered revalidations don’t contain empty prefixes

v1.10.3 (2018-8-6)

Bug Fixes

  • Fix widgets being unable to save
  • Fix settings link in plugin overview for Plesk users

v1.10.2 (2018-8-3)

Bug Fixes

  • Fix menu for Plesk users

v1.10.1 (2018-8-2)

Bug Fixes

  • Fix release version

v1.10.0 (2018-8-2)


  • Add new tab for advanced settings
  • Revalidate page for profile and taxonomy changes
  • Change behavior for Plesk users

Bug Fixes

  • Fix division by zero bug
  • Trigger cache invalidation after saving settings
  • Fix showing HTTPS note when on localhost
  • Fix division by zero in stats
  • Fix broken “Upgrade Now” button

v1.9.0 (2018-7-12)


  • Redo the getting started page
  • Show performance metrics on the getting started page
  • Redo Speed Kit dashboard widget
  • Add “Upgrade” tab
  • Add examples for whitelist and blacklist

Bug Fixes

  • Fix caching plugins not revalidating Speed Kit
  • Fix issues with Strato’s ServerSide Security
  • Fix plugin not working for multiple WordPress instances with same app
  • Fix Speed Kit installed in multiple versions after update
  • Fix Speed Kit scope for differing protocols in home and site URL

v1.8.1 (2018-6-28)

Bug Fixes

  • Fix snippet and dynamic fetcher missing after update

v1.8.0 (2018-6-26)


Bug Fixes

  • Fix and refactor blacklisting home URL when using WooCommerce
  • Fix service worker request path
  • Fix update link in plugin outdated note


  • Add a note that one needs to be logged out for Speed Kit to work

v1.7.2 (2018-6-8)

Bug Fixes

  • Revert the speed-kit-sw.js back to the root folder

v1.7.1 (2018-6-5)


  • Add home URL, wp-content, and wp-includes/js to whitelist
  • Add wp-json and login to blacklist
  • Send Service Worker with PHP under “/speed-kit-sw.js”


  • Remove site URL from whitelist

v1.7.0 (2018-5-29)


  • Rename plugin from “Baqend” to “Speed Kit”
  • Rename “Speed Kit” tab to “Settings”
  • Rename menu item from “Baqend” to “Speed Kit”
  • Update help text


  • Remove Hosting feature
  • Remove manual installation instructions


  • Update dependencies
  • Add Measure Performance widget on getting started
  • Update plugin description
  • Add FAQs to the README
  • Remove hosting settings
  • Add single mail registration
  • Test up to WordPress 4.9.6

Bug Fixes

  • Fix showing wrong username in account tab
  • Wrap WooCommerce blacklist pathnames in regex
  • Prevent the front page from being blacklisted by WooCommerce

v1.6.3 (2018-5-16)

Bug Fixes

  • Add terms of service to registration form
  • Remove automatic registration on first start

v1.6.2 (2018-5-8)

Bug Fixes

  • Fix layout of account form
  • Fix log out button bug

v1.6.1 (2018-5-2)

Bug Fixes

  • Fix bug while updating a widget

v1.6.0 (2018-4-24)


  • Make revalidation more prominent
  • Add dashboard widget
  • Change design of Speed Kit config section
  • Add update widgets action to trigger revalidation
  • Add additional actions to trigger revalidation
  • Extend default whitelist with common CDNs
  • Add new cookies to blacklist

Bug Fixes

  • Be more robust in finding the Speed Kit config entry

v1.5.1 (2018-4-3)


  • Display error messages if Speed Kit update fail
  • Increase Speed Kit update frequency

Bug Fixes

  • Fix pathname generation for WooCommerce
  • Fix Speed Kit file updates
  • Hide hosting on Getting Started page

v1.5.0 (2018-3-21)


  • Add French, German (Switzerland), and German (formal) translation
  • Automatically enable Speed Kit on first activation
  • Automatically login user on first activation
  • Redirect to “Getting Started” if not logged in
  • Redirect to “Getting Started” on plugin activation
  • Add warning if user has not enabled SSL
  • Add hint to the help in Speed Kit and Hosting tab
  • Hide hosting help if hosting is disabled

Bug Fixes

  • Fix plugin URI
  • Fix typos and URLs in texts
  • Update help text
  • Fix building of admin URLs
  • Fix PHP compatibility check

v1.4.5 (2018-3-16)


  • Improve hosting deployment speed
  • Reduce plugin size by 70 kB

Bug Fixes

  • Fix filenames not found by translate.wordpress.org

v1.4.4 (2018-3-12)


  • Translate into formal German (Switzerland)
  • Make German (Germany) translation informal
  • Update Baqend SDK

Bug Fixes

  • Fix calculated scope URL
  • Fix wrong example content in Speed Kit tab

v1.4.3 (2018-3-12)


  • Calculate the Service Worker scope by its URL

v1.4.2 (2018-3-9)

Bug Fixes

  • Fix paths in subdirectory installations of WordPress

v1.4.1 (2018-3-9)


  • Reduce built ZIP size by 200 kB
  • Improve logging with Monolog
  • Improve bootstrapping performance

Bug Fixes

  • Fix check whether login is broken
  • Fix bug in check_plugin_update hook

v1.4.0 (2018-3-7)


  • Add API token support for revalidation
  • Revalidate HTML after updating the plugin
  • Add Speed Kit update cron hook

Bug Fixes

  • Fix token revalidation code

v1.3.5 (2018-2-19)

Bug Fixes

  • Fix release process

v1.3.4 (2018-2-19)

Bug Fixes

  • Fix check for connection in frontend
  • Update release process

v1.3.3 (2018-2-19)

Bug Fixes

  • Fix resolving dependencies with plugin in subdirectory

v1.3.2 (2018-2-12)

Bug Fixes

  • Fix bug with “maxStaleness” in config
  • Fix dependencies for PHP 5.5.9

v1.3.1 (2018-2-8)

Bug Fixes

  • Register new users with Speed Kit sign-up type
  • Move composer.json up and remove Dockerfile

v1.3.0 (2018-2-7)

Bug Fixes

  • Fix IDs in help view


  • Check the PHP version before activating
  • Automatically retrieve fetch origin interval
  • Tested up to WordPress 4.9.4

v1.2.0 (2018-2-6)


  • Tested up to WordPress 4.9.3
  • Allow comments using semicolon in whitelist, blacklist, and cookie

v1.1.5 (2018-2-1)

Bug Fixes

  • Fix PHP 7.0 Polyfill

v1.1.4 (2018-2-1)


  • Update Baqend PHP SDK

v1.1.3 (2018-2-1)

Bug Fixes

  • Fix release cycle for README and CHANGELOG
  • Add script to convert Markdown to WordPress README

v1.1.2 (2018-2-1)

Bug Fixes

  • Tested up to WordPress 4.9.2

v1.1.0 (2018-1-23)

Bug Fixes

  • Remove third-party plugin update checker
  • Improve packed ZIP file
  • Update translations
  • Update meta properties


  • Add fetch_origin_interval option to Speed Kit
  • Improve README

v1.0.16 (2017-11-23)

Bug Fixes

  • Exclude some generated files from release ZIP

v1.0.15 (2017-11-23)

Bug Fixes

  • Fix ZIP dist dir in release

v1.0.14 (2017-11-23)

Bug Fixes

  • Fix ZIP command in release

v1.0.13 (2017-11-23)

Bug Fixes

  • Fix pushd command in release

v1.0.12 (2017-11-23)


  • Improve released ZIP archives
  • Update the README

v1.0.11 (2017-11-16)

Bug Fixes

  • Fix bug with wish lists in WooCommerce
  • Fix bug which manipulates the options
  • Fix bug in SimplyStaticOptionsAdapter
  • Immunize against all exceptions in revalidation trigger
  • Do safely logout on exception


  • Add helpful heading in hosting
  • Support new snippet

v1.0.10 (2017-10-16)

Bug Fixes

  • Revalidate user if API access fails

v1.0.9 (2017-10-10)


  • Advanced WooCommerce handling: automatically parse blacklist from WooCommerce shops
  • Update Speed Kit snippet

v1.0.8 (2017-10-5)


  • Add hosting tab checkbox

v1.0.7 (2017-9-19)

Bug Fixes

  • Change ServiceWorker path to “/sw.js”


  • Show note when plugin is outdated

v1.0.6 (2017-9-18)

Bug Fixes

  • Update only to version 1.X.X
  • Update Composer hash
  • Remove Hosting from help
  • Fix content types, add track type
  • Refactor config builder
  • Fix preload ServiceWorker destination
  • Improve error handling in upload_archive


  • Improve labels of Speed Kit options
  • Remove Hosting from view
  • Replace content types with checkboxes
  • Add bypass cache by cookie configuration

v1.0.5 (2017-9-7)

Bug Fixes

  • Fix default blacklist
  • Fix empty lines in lists
  • Fix line breaks in list views
  • Fix ServiceWorker URL


  • Apply new ServiceWorker rules API
  • Update the snippet

v1.0.4 (2017-9-5)

Bug Fixes

  • Fix configuration parameters
  • Map dev ServiceWorker from host to client
  • Fix getting started design


  • Add max staleness and app domain settings

v1.0.3 (2017-8-17)

Bug Fixes

  • Stop calling identity on every request
  • Fix line breaks when showing settings
  • Revalidate Speed Kit when its settings are changed
  • Stop sending Service Worker with PHP


  • Add an example for white and blacklist in Speed Kit settings
  • Add statistics to getting started

v1.0.2 (2017-8-17)

Bug Fixes

  • Optimize frontend code
  • Do not send Bloom filter preload anymore
  • Send rel=serviceworker header
  • Deactivate ServiceWorker manually in Admin
  • Send revalidation asynchronously


  • Update README.txt metadata

v1.0.1-alpha (2017-8-16)

First Release