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As you may have noticed, we’ve been rolling out features that fall under one theme: page speed. We’ve said it before, and we’ll say it again, slow pages are killing your conversions.


We’ve been busy behind the scenes making sure your pages load as fast as possible (with new features like Speed Boost 🚀 ), but you can also take action!


Here’s a handy checklist to use to ensure your pages are loading as fast as possible. If you’re not doing some of these items yet, we highly encourage you to give them a try to give your pages that extra oomf.


Page Speed Checklist:


1. Check your image size. Images bigger than 800kb could be slowing your page load time.


Suggestion: Optimize/compress your images to reduce their size.


2. Be strategic with the inclusion of images on your pages. Each image creates its own HTTP request and adds size to the page, thus adding to total load time.


Suggestion: Only include the images that are absolutely necessary.


3. Reduce font families/weights. Each font/weight adds to page load time.


Suggestion: Reduce the amount of font families/weights being used on a page. Ideally, pages shouldn’t have more than 3 or 4 font weight/family combinations.


4. Be mindful of how many HTTP Requests are being made on your pages. HTTP Requests are requests for external resources (external scripts, stylesheets, images, etc.). The more requests that are being made, the longer it will take a page to fully load.


Suggestion: Reduce the number of HTTP Requests. Google suggests having less than 75 HTTP requests (for mobile pages).


5. Disable jQuery if your pages aren’t using it; it may be enabled by default. jQuery can potentially slow pages down.


6. This one’s a biggie: optimize your custom scripts.


We’re proud to offer the most customizable experience for our customers by allowing custom scripts on all Unbounce pages, however, there are a few things to keep in mind to make sure your scripts aren’t slowing your pages down:



  • Use native javascript functionality when you can.

  • Where possible, add scripts ‘Before Body End Tag’. Scripts in the head of your document will slow down the rendering of your page.

  • If using scripts with an external source, use the async version if you can. This will stop the script from blocking rendering and will speed up rendering.

  • Avoid importing external libraries or multiple versions of external libraries where possible.

  • If using inline javascript, ensure that it’s minified. If it isn’t minified yet, use a tool like: https://jscompress.com/



This list leans towards the more technical side of things, so I encourage you to reach out of any of these items are unclear. A team of us will be monitoring this post to make sure you have all the answers and tools you need to make sure your pages are loading lightning quick! ⚡



We hope this list proves useful to you. Happy page building! :spinbounce:

Thanks very helpful. 2019 is the page of speed. We are full on board and want to push harder. Recently I blogged about page speed and also included some of our findings: https://www.apexure.com/blog/pagespeed-and-load-time-insights-for-websites-and-landingpages

Woah! @waseembashir that post is packed with insights!! Thanks so much for sharing that! :clap:

Thanks Jess. Unbounce has been pushing boundaries in landing page innovation. We are blown away with what AMP can do. In our agency, we aim reduce page page load times to less than a second, its great to see Unbounce throttling ahead.

Great contribution, @waseembashir! Thanks for sharing those useful tips 🙌

thanks a lot. Appreciate the kind words.

Thanks for this Jess!

This is an excellent resources @Jess! 🙂

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