Using a Tag Management System – like Google Tag Manager or TagCommander – to deal with scripts and third-party content populating your web pages presents obvious advantages for marketers. From a Web Performance point of view, the impact of such tools deserves your attention… Let’s talk about tags. Those code snippets usually relying on external […]

You may have seen recommendations from Dareboost to put in place a security policy regarding the origin of your resources. In case you haven’t dived in yet, I’d like to offer some advice on its implementation, from my experience. The idea, already explained here, is simple: you define security guidelines for the browser to apply […]

You may already have dreamed of it: being able to measure exactly when one image of your web page is rendered or a particular script is executed, and track this moment through your favorite tools. The User Timing API made it possible, allowing you to place marks wherever you need within your pages! That feature […]

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 […]

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 […]

Dareboost has just added Norway to its list of available locations to test your website performance. Indeed, Oslo is the 13th city across the world – the 5th on the European continent – to host our test probes. Web performance tests from Oslo After Mexico (Mexico), Amsterdam (Netherland), São Paulo (Brazil) and Seattle (USA) – […]

At Dareboost, we have a motto: you can’t assess your overall website performance with one single metric! Nevertheless, some are more synthetical and relevant than others. We consider Speed Index as one of the most important indicators to analyze. Let’s discover why: what does the Speed Index indicate? How is it measured? How to interpret […]

On July 2018, Google will use Speed as a Ranking Signal for Mobile Searches. As a service dedicated to website speed monitoring and optimization, we’re of course very interested in how Google is dealing with website speed to crawl, index and rank web pages within its search results. After Red Slow Label and Slow to […]

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. Whether you are a luxury player wishing to broadcast extremely high-quality videos or […]

All the Dareboost team wishes you all the best for this new year. Obviously, we’re talking about your websites performance, which we hope to be at the top in 2018. Why not considering your web pages optimization as one of your best 2018 wishes (and a real goal to achieve)? Here is a little game […]

To make 2018 a great year for your website performance, let’s have a look back on the major evolutions for Dareboost in 2017: new features, improvements, best practices, etc. This retrospective post may remind you some very useful information for 2018! 2017: another eventful year for Dareboost! Here is an overview to make sure you […]

Artists are not the only ones who suffer from a blank page, so are your users. Their frustration can lead them to abandon your page prematurely. Several techniques can help you to speed up rendering and avoid that problem. One of them is to defer parsing of JavaScript files. Modern browsers are designed to render […]

Save the date! From December 12, new quality checks will enrich our website analysis tool. This post aims to introduce those new quality tests. This is a major update, with numerous new tests and also improvements for existing ones. Expect your Dareboost score to change on December 12! Let’s discover the changes and hopefully this […]

Just a few weeks after Boris Schapira has joined Dareboost as our Customer Success Manager, it is now time to welcome on board Matthieu Bué, our new Front-End developer. Let’s discover the man who will sublimate our tool interfaces and enchant our UX. Hello Matthieu. Let’s start that interview with a short presentation: who are […]

“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 […]

[08:45 PM UTC]UPDATE : the network issue seems to be fixed now, we have removed the temporary blacklists and are monitoring closely the situation. Since about 10:00 AM UTC this Sunday (12 Nov. 2017), Dareboost is facing issues for websites tested from Paris and Amsterdam. Only websites using resources from Google domains are affected (Google […]

A great perceptual performance is an essential condition for any website overall success. As every people working for a website has to be concerned by speed issue, it should definitely matter for you as a webmarketing manager. Within this 2nd episode, let’s discover 3 more arguments illustrating how Dareboost can help you take control back […]

Introduction à la performance web (enjeux, méthodes, mesures et présentation du service en ligne d'audit et d'aide à l'optimisation : https://www.dareboost.com)

Les slides présentées lors de l'événement proposé par DareBoost le 30/04/2015 à Rennes

We are very glad to announce one more location to test and monitor your web performance with Dareboost: Mexico. The 12th location available on our service. 12 locations to test your website speed with Dareboost Mexico, here we come! We are excited to provide this new location to all of our users for their Dareboost […]

Web agencies and their customers, managers and technical teams, are discussing and debating about load time without always understanding each others. Whereas websites loading speed is an undeniable and strategic matter that every person involved within a web project should consider, relevant and consistent indicators for web performance have to be selected first. You can […]

“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 […]

Loading speed is an essential condition for any website overall success. As every people working for a website has to be concerned by speed issue, it should definitely matter for you as a webmarketing manager. Let’s see how Dareboost can help you take control back on your web performance, even if you’re not a tech […]

The 12th edition of Paris Web – the unmissable event dedicated to web quality – has been held last week. With Dareboost – for the very first time – as one of the sponsors. As a matter of fact, our on-site stand has not been – by far – the only place where one would […]

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 […]

As Dareboost is one of the 40 selected startups coming from 15 countries by DiG Publishing to present their services to 120+ leading european publishers, we have decided to test the web performance of some of those top news medias and vertical websites with large audience before going to Lisbon. Here are the detailed results. […]

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 […]

A lot of news to announce about Dareboost! First of all, we are very glad to see our team reinforced with the arrival of our Customer Success Manager. That said, let’s have a look back to a few announcements you may have missed this summer. And then talk about some nice events Dareboost will be […]