Waterfall charts: technical read and practical recommendations

waterfall

Waterfall charts provide a timeline representation of how elements of your web page are loaded into the browser.

This type of graph provides a wealth of information, including details such as the size of each of your resources, the number of requests, the loading behaviour, loading times and much much more!

So grab your wetsuit webpagetest report, as we dive in and show you how to interpret your waterfall chart and uncover the clues it has to offer for improving the performance of your web site.

Read More

Fasterize now supports Let’s encrypt

There has been much talk about HTTPS lately. It is not just an advantage, it has become a must-have (for privacy and security of course, but for SEO as well).
HTTPS used to be expensive and hard to implement, Let’s encrypt has changed the deal.
It is a free, automated, and open certificate authority (CA) that provides SSL certificates, with a 3 months validity (renewable). Let's Encrypt offers a way to support a more secure and privacy-respecting Web, which is the reason why it was dear to us to support them and make it easier for our clients to use Let's Encrypt. 

Read More

Why should you need to make your web site go faster?

CDN
Perhaps you are thinking that your web site doesn’t need speeding up? But have you ever actually measured the speed of your web site? And have you actually run a speed check on it recently to make sure it never goes slow?

Simply looking at how fast your site feels is not enough when it comes to assessing the speed of your web site. Actual loading times can depend on a number of factors: which page is being viewed, which browser is being used, whether there is any caching, the type of connection (ADSL, 3G, Edge, etc.), the type of device is being used, etc.

Read More

Speed Index: a key metric for the user experience

Speed Index UX
Clicks are crucial in today's fiercely competitive world. This is why the user (and the user experience) is at the focal point of businesses’ strategies.
One of the main obstacles to a good user experience is the time taken for web pages to load. We’ve all experienced those blank pages that take forever to load... How much time have you spent waiting?
And it's worth noting that web users start losing patience after just 2 seconds, on average. So, page loading times are clearly an essential issue in terms of the user experience.

Here are a few key metrics that have been used over the years to measure page loading performance:

Read More

Mobile-first: Let’s talk about performance

mobilefirst

When we speak about mobile-first, we usually forget to mention performance.
This comes from a misunderstanding of mobile networks restrictions and mobile power.

Nevertheless, mobile performance is crucial: 71% of mobile users expect a web page to load at least as fast on mobile as on computer (versus 58% in 2009) and 46% consider that websites usually are slower on mobile than on computer.
60% of mobile users think that a web page should load in less than 3 seconds on a mobile.
So how can we improve performance and go beyond the constraints of a mobile world? Continue reading Mobile-first: Let’s talk about performance