When we talk about web performance measurement, what we’re actually trying to determine is the moment when a user can effectively achieve his or her goal. Meaning the users can consult the content they are looking for and/or interact with the page in a satisfactory way. Some metrics endorse rendering actions by the browser, others measure the progress of the display through the recording of a video. However, a great mystery remains: how to properly measure interactivity.
For a few years now, Google has been pushing an ambiguous metric: Time To Interactive. What does it mean? Let’s define it and explain how and when to use it (or not).
Continue reading Measuring Interactivity with TTI: Time To (consistently) Interactive
Images are a key content on your website? If you’re serious about your website performance, you have probably optimized them. But have you considered to lazy load your images? Lazy loading images improves the user experience by saving bandwidth for important content first.
Some reject the technique for SEO considerations. But properly lazy loading your images does not prevent them from being indexed. Let’s find out why you should implement lazy load, and how to make sure you build it in a SEO friendly way.
Continue reading Lazy Loading, faster webpages, SEO friendly
The simplicity of use of Dareboost is frequently highlighted by our customers. After working with dozens of them to get valuable feedback, we’re very proud to announce a new release of our User Journey Monitoring (Scenario) feature. Let’s discover why and how you should start using it to better monitor your Digital Customer Experience!
Continue reading Synthetic Monitoring to monitor the web performance of your User Journeys (transaction monitoring)
Although we work in the same company, the daily life of each Dareboost collaborator is very specific. About a year ago, we have hired our first remote workers. That was a new organization to be found. We do not live in the same place, don’t have the same jobs or routines, and it sometimes does not make it easy to share our successes, our doubts, our feelings. We’re enthusiastic and absorbed in what we’re building, but we also need to take a step back, once in a while, to nurture our vision and company culture.
We regularly meet in Dareboost’ headquarter (Rennes, France) for a few days of brainstorming where we alternate between workshops, indoor or outdoor activities, and friendly meals (long live the raclette!). Continue reading 5 days together: taking a step back to move forward
Improving the speed at which a web page is displayed often means making the browser’s life as easy as possible. When the browser receives an HTTP response, it actually receives text encoded in bytes, where each byte or sequence of bytes represents a given character. If the browser does not have a clear information about the used encoding, it will waste time trying to guess and may fail in some cases.
Continue reading Content Encoding: why and how to use the meta charset tag and the Content-Type header
We often assist our clients in their web performance optimization projects. Between two follow-up meetings, some members of the Etam Group‘s web development team gave me an interview.
Continue reading Dareboost at Etam: when Web Performance meets a strong culture of innovation
We may be Web Performance experts, we still don’t have superpowers . We also need tools to analyze our sites and applications. So when we released our new Custom Timings feature, we naturally jumped at the chance to test it on Dareboost.com… and immediately saw the benefit. Continue reading [Dogfooding] How Dareboost has benefited from Custom Timings monitoring
For several years now, a new range of solutions have emerged in the web technologies landscape. Static site generators, headless CMS, content infrastructure… these solutions contribute to a global trend. “Static trend”, “JAMStack”, several names exist but none really covers what is an overall new proposal for web application architecture, and somehow a comeback to the roots of the Web.
Continue reading Back to static with JAMStack: a paradigm shift for better UX and web performance
Representing more than 75% of the videos served on the Internet, MP4 is the most commonly used format today. However, MP4 is often used improperly, which can have an unfortunate impact on the User Experience. Let’s see how we can improve this. Continue reading Optimize your MP4 video for better performance
“Reduce the page weight”: here is one of the most usual tips in Dareboost reports.
According to HTTP Archive trends, images represent 53% of the average pages weight, whether viewed on desktop or mobile devices. When you want to reduce the weight of your web pages, optimizing images should be at the top of your priorities.
Continue reading Optimize Images to Reduce Page Weight: File Formats, Tools and RWD
Our regular readers already know that HTTPS is now a requirement for any websites. The urge to get rid of unsecured navigation has never been stronger: each release of Google Chrome or Mozilla Firefox comes with a new warning sign for users sharing private data. Soon, all forms will be concerned.
But offering an HTTPS version of your website is not enough to automatically redirect all your HTTP traffic to this secured version. Continue reading Ensure secured connections with HSTS (HTTP Strict Transport Security)