Blog

4 crucial speed boosts for your HTTPS-enabled web site

HTTPS optimisations

TLS (Transport Layer Security) encrypts traffic to and from a web site, thereby preventing other parties from eavesdropping on your data. However, adding this safeguard to your web site introduces greater complexity and affects how the site interacts with your visitors. TLS can therefore lead to slow page loading times and have a negative impact on user experience. In this article, we introduce the various optimisations implemented by Fasterize at the TLS security layer to ensure your web site remains slick while maximising security.

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Web performance: Optimising font loading

How much of an impact does font loading have on loading times? What is the best web performance strategy to adopt when it comes to optimising font loading? Anthony, one of our web performance experts, lifts the lid on some or our in-house analysis and gives the low-down on FOUT, preloading and inlining.

NB: "fonts" here refer specifically to web fonts.

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CDN: 11 things you should know

CDN
Web performance is a crucial factor for any ecommerce website, and CDN are among the many solutions available to improve this performance.
In this article, we’ll review some of the questions our customers have asked about CDN. We hope our answers will give you a clearer understanding of Content Delivery Network, as they have for our customers.

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Waterfall charts: from technical interpretation to 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.

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Fasterize eases access to server logs

We enhanced our API to ease your server logs access. You can now retrieve your cached page logs (whether there are cached on a CDN or on Fasterize) easily. A good news, especially for SEO professionals, who can find a lot of meaningful data in these logs. And, the icing on the cake, we are officially integrated with Botify and Screaming Frog!

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Why is a performance budget key to your web performance success?

Performance budgets have been around for a number of years (since 2013 to be precise) and have proven their worth over and over again. CTOs the world over have achieved and maintained performance targets by adopting one.
The budget in question is not the amount of money that you and many other web developers like you will be spending on achieving optimum performance this year. Rather, we will be taking a detailed look at the notion of ‘performance budget’. It is a concept that deserves to be more widely adopted by web site producers. Once you have set yours, you will probably wonder how you ever lived without it.

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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. 

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Third party tags: how much of an impact do they have on web performance?

Webperf and third parties study

An increasing number of third party services are now being incorporated into today's web sites. In 2012, a typical web page contained an average of 13 third party scripts or "tags". Today, our Top 40 analysis of French e-commerce web sites shows that this number has risen to an average of 21 third party tags, an increase of 62%.

These third party services provide added value, with the promise of increased revenue (e.g. via advertising), higher conversion rates (through the use of retargeting tags) or a better understanding of user profiles (through embedded analytics).

But they also have a poor reputation when it comes to their impact on performance! A number of studies have attempted to prove this in the past (including studies such as those conducted by Instart Logic and NCC Group), and it forms a key part of the rationale behind ad blockers (a topic we will come back to in a future article).

We were keen to find out just how much of an impact these various third party widgets would have on the monthly web performance rankings published on JDN.

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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.

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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:

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