WebWait - Benchmark Your Website. Mesurer le temps de chargement d'une page. Le temps de chargement a un impact direct sur l'expérience utilisateur, et dans une moindre mesure sur le référencement naturel.
Un développeur ou un référenceur doit dont chercher à diminuer au maximum ce temps de chargement. Et pour cela, il est toujours intéressant réaliser des tests avant et après vos modifications. Voici donc 5 outils pour réaliser un benchmark complet des performances de votre site. GTMetrix C'est de loin mon outil préféré. GtMetrix intègre parfaitement PageSpeed et Yslow Cerise sur le gâteau, vous avez accès à un historique plutôt bien fait sur l'évolution jour par jour du temps de chargement de votre site. L'historique de GTMetrix Les points forts : Le suivi est automatiséTrès bonne intégration des outils YSlow et PageSpeed, ainsi que de la "timeline" du chargementIl permet de comparer deux URLs, et de comparer deux rapports entre eux Les points faibles : Lors du suivi automatisé, il ne prend qu'une mesure par jour, ce qui peut parfois fausser les données. Yottaa Webwait.
CSS Stress Testing and Performance Profiling. Now let me explain: I have been losing my sanity over the oddest issue.
The project I’m working on right now has a fairly complex stylesheet. Performance for the site is absolutely critical. I’ve done my best to squeeze and optimize every line I can. In all browsers, it runs like a champion. Except IE9. Something specific to IE9 was causing a serious performance glitch. Sadly, no one had an answer So, as I lay there in the corner of the closet, weeping bitterly, I realized that writing my own CSS stress tester wouldn’t be that difficult. Of course it took a while to work out the exact implementation. My first implementation was written synchronously. Instead of: var time0 = new Date().getTime(); window.scrollBy(0,100);var delta = (new Date().getTime()) - time0; Holmes.css - CSS Markup Detective.
What does it do?
The holmes.css file will display either an error (red outline), a warning (yellow outline), or a deprecated style (dark grey outline) for flags such as: Missing required attributes on tags, such as name attributes on inputs (lots of these) Potentially improvable markup, such as links with href="#" Deprecated and Non-W3C Elements - see W3C.org's article on obselete tags Non-W3C Attributes - as above, just the most important ones since there are MANY Thanks to Anthony Mann, holmes now displays an informative error message when you hover over the element. Support for :after/::after on images is non-existent however in most browsers. How do I use it? Simply download a version of the CSS, minified or normal (with docs), and include a stylesheet link to it on your page.
In terms of configuration, such as changing the flag colours: go nuts! Why should I use it? Browser Support Works 100% in Google Chrome 10+ Safari 5+ Opera 10+ Firefox 3.5+ How to Improve Website Load Times. I’ll admit it: I’m addicted to speed.
No, not the psychostimulant; I’m talking about website speed. I’m not alone, either. Google recently announced that they consider website speed when determining search engine rankings. Oh, did I mention that a slow website can literally kill your revenue stream? Check out what the experts at websiteoptimization.com have to say about the topic: Google found that moving from a 10-result page loading in 0.4 seconds to a 30-result page loading in 0.9 seconds decreased traffic and ad revenues by 20% (Linden 2006). It’s quite clear. What Determines Website Page Speed?
The Yahoo! So, I’ll break down the top performance recommendations and show you you can apply them to your website. Let’s do it. 1. Translation: Limit the number of files required to display your website When someone visits your website, the corresponding files must be sent to that person’s browser. As expected, every file you use to enhance your design detracts from its performance. W3 Total Cache.
The only WordPress Performance Optimization (WPO) framework; designed to improve user experience and page speed.
Recommended by web hosts like: Page.ly, Synthesis, DreamHost, MediaTemple, Go Daddy, Host Gator and countless more. How to Improve Website Load Times. Meta Tag Analyzer. Calcul de densité de mots clés. Website Speed and Performance Optimization. Keyword density analyzer, and keyword placement & prominence analysis.