Mobile CDN – Speeding up Content Delivery on All Devices

mobile cdn

When it comes to web performance, people are always discussing different optimizations in which you can speed up your website. One aspect unfortunately though that is quite frequently overlooked is how mobile devices come into this equation. In today’s post we want to show you why it is important to utilize, what we call a mobile CDN, and how it can help ensure fast load times across all devices, whether they be desktops, laptops, or mobile phones. Mobile is changing the way we need to think about the web.

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X-Frame-Options – How to Combat Clickjacking


HTTP security headers provide yet another layer of security by helping to mitigate attacks and security vulnerabilities by telling your browser how to behave. In this post we will be diving more in-depth into x-frame-options (XFO), which is a header that helps to protect your visitors against clickjacking attacks. It is recommended that you use the x-frame-options header on pages which should not be allowed to render a page in a frame.

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Top 12 Browser Compatibility Testing Tools

browser compatibility testing tools

When it comes to designing and developing for the web, you will at some point in time inevitably come across a bug, compatibility and or rendering issue, with a browser in which you don’t have access to. Even with ever-improving standards support you almost always have to rely on third party tools to diagnose the issue. So today we want to cover the top 12 browser compatibility testing tools which you can use to debug problems and ensure all your visitors are receiving the same experience on your website or application.

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Integrating Log Management into Your DevOps Workflow

log management

We live in a day where large amounts of data is constantly being distributed and recorded, and sometimes that can be overwhelming. One way to stay on top of everything is to integrate a well thought out log management system into your current devops or IT workflow. Log data can help you become aware of application errors, slow web performance, and other operational issues before they turn into a larger scale issue or start costing your company revenue.

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PostCSS – Transforming Your CSS with JavaScript


When it comes to CSS there are always new tools being introduced to help us transform styles in a more fast and efficient manner. There has been a lot of buzz this past year in the development community about PostCSS. So today we thought we would give you a brief introduction on what PostCSS is and how you can utilize it to streamline your development workflow. Make sure to also check out our previous post where we discussed some of the differences between CSS preprocessors, Sass vs LESS.

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Waterfall Analysis – Diving Into Your Website’s Requests

waterfall analysis

Analyzing website performance is something we do on a daily basis here at KeyCDN. One way we benchmark and troubleshoot slowness is by diving into the website’s individual requests and doing what we like to call a waterfall analysis. There are numerous tools out there like Chrome DevTools, WebPageTest, and Pingdom which will generate a waterfall chart of your website. Understanding how they work can help you to better pinpoint performance issues as they provide valuable insights about how specific assets affect your page speed and the user experience.

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Setting and Calculating a Web Performance Budget

web performance budget

When it comes to web performance, it’s always a give and take game. Do you really need that script or 3rd party asset, and if so, what purpose or functionality does it serve? Is it something you can live without?  There is always a good balance that must be found between performance, functionality, UX, and design. That is why it is important to calculate and set what we call a web performance budget and try to stick to it as close as possible.

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Fix Leverage Browser Caching Warning

local analytics

At some point in time when you are running speed tests with your website you will most likely encounter the all popular “leverage browser caching” warning in Google PageSpeed Insights. And we are referring to the one originating from Google’s analytics.js script. In this post today we are going to show you a couple options on how to easily setup local analytics to fix this warning. Depending upon your environment you might also see a slight performance improvement. We have also included a new way to more easily do this for those of you running WordPress.

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How to Make a Favicon Small and Cacheable

make a favicon

Today we want to talk about your favicon and how to make a favicon small, cacheable, and fast. This is definitely one of those optimizations that can be classified as lower priority, but everything adds up over time when it comes to web performance. If you add up 20 small optimizations, suddenly you could be looking at seconds shaved off your load times. As a CDN provider, we love sharing even the smallest of tricks that can help you stay ahead of your competition and ensure your sites load as fast as possible for both your visitors and Google.

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How to Migrate Google Fonts CDN to Your Own CDN

google fonts cdn

There are a lot of different options today when it comes to serving up web fonts on your website or application. You can use a system font, host fonts locally, or use 3rd parties like Google or Typekit. Today we want to share with you the fourth option you have, which is to host Google Fonts on your own CDN. Below we will discuss some of the reasons why this is beneficial and also how to migrate away from Google Fonts CDN and take advantage of your content delivery network.

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