{"id":12268,"date":"2025-11-27T09:30:00","date_gmt":"2025-11-27T08:30:00","guid":{"rendered":"https:\/\/www.codeur.com\/blog\/?p=12268"},"modified":"2025-11-27T09:30:00","modified_gmt":"2025-11-27T08:30:00","slug":"outils-test-performance-site","status":"publish","type":"post","link":"https:\/\/www.codeur.com\/blog\/outils-test-performance-site\/","title":{"rendered":"6 outils de test de performances pour votre site internet"},"content":{"rendered":"<p>R\u00e9aliser r\u00e9guli\u00e8rement des tests de performances de son site web est important pour am\u00e9liorer la vitesse de chargement de ses pages web.<\/p>\n<p>Les facteurs de performance comme la vitesse ou le poids d&#8217;une page web sont cruciaux&nbsp;: <a href=\"https:\/\/www.codeur.com\/blog\/performance-impact-vitesse-referencement\/\" target=\"_blank\" rel=\"noopener noreferrer\">ils influencent le r\u00e9f\u00e9rencement naturel<\/a>, le taux de rebond, le taux de conversion et ont m\u00eame un impact sur l&#8217;emprunte carbone d&#8217;Internet.<\/p>\n<p>C&#8217;est pourquoi il est essentiel de <strong>tester les performances de son site et d&#8217;identifier ses points d&#8217;am\u00e9lioration<\/strong>. Cela tombe bien, nous avons s\u00e9lectionn\u00e9 pour vous les meilleurs outils gratuits pour tester la performance de votre site qui rempliront parfaitement ce r\u00f4le.<\/p>\n<blockquote class=\"entry-content sponso-alert\"><p>Les outils de cet article ont \u00e9t\u00e9 s\u00e9lectionn\u00e9s par notre \u00e9quipe et ne sont pas sponsoris\u00e9s. D\u00e9couvrez comment <a href=\"https:\/\/www.codeur.com\/boostez-votre-visibilite\" target=\"_blank\">sponsoriser votre outil<\/a>.<\/p><\/blockquote><h2>1. PageSpeed Insights&nbsp;: le test de performance de Google<img decoding=\"async\" class=\"aligncenter wp-image-96145 size-full\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights.png\" alt=\"test performance page web pagespeed insights\" width=\"1002\" height=\"651\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights.png 1002w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights-300x195.png 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights-768x499.png 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights-60x39.png 60w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights-370x240.png 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights-270x175.png 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights-570x370.png 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-page-pagespeed-insights-740x481.png 740w\" sizes=\"(max-width: 1002px) 100vw, 1002px\" \/><\/h2>\n<p><a class=\"pagespeed-insights\" href=\"https:\/\/developers.google.com\/speed\/pagespeed\/insights\/\" target=\"_blank\" rel=\"noopener noreferrer\">PageSpeed Insights<\/a> est un outil de Google permettant d&#8217;analyser la vitesse d&#8217;affichage et la performance d&#8217;une page web sur desktop et sur mobile.<\/p>\n<p>En plus d&#8217;attribuer un score \u00e0 la vitesse de votre page, l&#8217;outil liste les diff\u00e9rents points \u00e0 am\u00e9liorer et les classes par ordre de priorit\u00e9.<\/p>\n<p>PageSpeed Insights vous donne m\u00eame des explications d\u00e9taill\u00e9es pour r\u00e9gler les probl\u00e8mes qui nuisent \u00e0 la vitesse de la page.<\/p>\n<p>Pensez \u00e0 \u00eatre particuli\u00e8rement vigilant sur les performances de votre site sur mobile, car c&#8217;est cette version de vos pages web qui sont prises en compte pour le r\u00e9f\u00e9rencement naturel.<\/p>\n<h2>2. GTmetrix&nbsp;: sp\u00e9cialiste des tests de performances web<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-96144 size-large\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-1024x550.png\" alt=\"test vitesse site internet gtmetrix\" width=\"770\" height=\"414\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-1024x550.png 1024w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-300x161.png 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-768x412.png 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-1536x824.png 1536w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-2048x1099.png 2048w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-60x32.png 60w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-370x199.png 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-270x145.png 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-570x306.png 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-internet-gtmetrix-740x397.png 740w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/p>\n<p><a class=\"gtmetrix\" href=\"https:\/\/gtmetrix.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">GTmetrix<\/a> est une autre solution tr\u00e8s pratique pour analyser la vitesse de votre site.<\/p>\n<p>Il est particuli\u00e8rement pratique puisqu&#8217;il affiche \u00e0 la fois les r\u00e9sultats de Pagespeed et de Yslow, deux outils de mesure reconnus.<\/p>\n<p>Cela vous permet de comparer diff\u00e9rents avis sur les performances de votre site et d&#8217;avoir de nombreux conseils pour l&#8217;optimiser.<\/p>\n<p>GTMetrix est une solution de test de performances de site internet qui permet \u00e9galement de comparer les performances et la vitesse de deux pages web entre elle. C&#8217;est id\u00e9al pour comparer deux versions d&#8217;une m\u00eame page&nbsp;!<\/p>\n<h2>3. Uptrends&nbsp;: test de vitesse de site gratuit<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-96146 size-large\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-1024x382.png\" alt=\"test performance vitesse site internet uptrends\" width=\"770\" height=\"287\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-1024x382.png 1024w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-300x112.png 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-768x286.png 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-60x22.png 60w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-370x138.png 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-270x101.png 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-570x213.png 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends-740x276.png 740w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-vitesse-site-internet-uptrends.png 1118w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/p>\n<p>Si <a class=\"uptrends\" href=\"https:\/\/www.uptrends.com\/tools\/website-speed-test\" target=\"_blank\" rel=\"noopener noreferrer\">Uptrends<\/a> est un outil de test de vitesse assez commun, il a l&#8217;avantage d&#8217;offrir de nombreuses localisations de test.<\/p>\n<p>Pour clarifier, l&#8217;endroit depuis lequel quelqu&#8217;un visite votre site a un impact sur la vitesse de ce dernier.<\/p>\n<p>En effet, si le serveur principal qui h\u00e9berge votre site se trouve \u00e0 Paris, le chargement sera beaucoup plus long pour un visiteur situ\u00e9 en Chine que pour un autre situ\u00e9 \u00e0 Lyon.<\/p>\n<p>Avec Uptrends, vous \u00eates s\u00fbr de pouvoir mesurer la vitesse de votre site depuis une ville proche de votre serveur (en France, vous avez le choix entre Paris et Lille). R\u00e9sultat&nbsp;: une analyse plus fiable et fid\u00e8le, ce que tous les outils de ce genre ne permettent pas.<\/p>\n<h2>4. Pagelocity&nbsp;: test de vitesse d&#8217;un site web gratuit<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-96148 size-full\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity.png\" alt=\"test vitesse site gratuit pagelocity\" width=\"971\" height=\"345\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity.png 971w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity-300x107.png 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity-768x273.png 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity-60x21.png 60w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity-370x131.png 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity-270x96.png 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity-570x203.png 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-vitesse-site-gratuit-pagelocity-740x263.png 740w\" sizes=\"(max-width: 971px) 100vw, 971px\" \/><\/p>\n<p><a class=\"pagelocity\" href=\"https:\/\/pagelocity.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pagelocity<\/a> a une approche assez unique puisque cet outil analyse votre pages web en s&#8217;int\u00e9ressant \u00e0 3 p\u00f4les&nbsp;:<\/p>\n<ul>\n<li><strong>La SEO on-page<\/strong>&nbsp;: URL ou titre trop long, taille du texte excessive&#8230; Autant d&#8217;informations pertinentes que Pagelocity peut pointer du doigt pour vous permettre d&#8217;am\u00e9liorer le r\u00e9f\u00e9rencement naturel de votre site ;<\/li>\n<li><strong>La performance<\/strong>&nbsp;: cette partie s&#8217;int\u00e9resse notamment \u00e0 la taille des images et des scripts et, bien entendu, \u00e0 la vitesse ;<\/li>\n<li><strong>Le code<\/strong>&nbsp;: un peu plus technique, ce p\u00f4le analyse entre autre vos classes et Id CSS ainsi que les balises m\u00e9ta.<\/li>\n<\/ul>\n<h2>5. appYuser&nbsp;: outil de test de performance complet<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-25455 size-full\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/appyuser-performance.jpg\" alt=\"appYuser test performance site web\" width=\"700\" height=\"371\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/appyuser-performance.jpg 700w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/appyuser-performance-300x159.jpg 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/appyuser-performance-370x196.jpg 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/appyuser-performance-270x143.jpg 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/appyuser-performance-570x302.jpg 570w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><br \/>\n<a class=\"appyuser-insertion\" href=\"https:\/\/www.quadran.eu\/appyuser\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">appYuser<\/a> est une solution unique en son genre qui vous permet d&#8217;\u00e9valuer le ressenti r\u00e9el des internautes vis-\u00e0-vis des performances de votre site web. Ce ressenti est calcul\u00e9 gr\u00e2ce \u00e0 la norme appYdex qui tient compte du d\u00e9but et de la fin d\u2019affichage de vos pages.<\/p>\n<p>Les performances web sont \u00e9valu\u00e9es pour tous les contextes et usages de vos internautes (OS, navigateur, mobile, appareil, r\u00e9gion&#8230;). Ici pas de robots ni de sondes, ce sont les acc\u00e8s r\u00e9els de vos utilisateurs qui sont analys\u00e9s.<\/p>\n<p>Gr\u00e2ce \u00e0 appYuser, vous pouvez identifier rapidement des axes d&#8217;am\u00e9lioration pour votre site (h\u00e9bergeur, CMS, bonnes pratiques HTML, contenus..) et prioriser ces derni\u00e8res en fonction de l\u2019impact sur le ressenti utilisateur et des gains estim\u00e9s sur le taux de conversion.<\/p>\n<p>Cette solution s\u2019adresse aux responsables de services web et experts techniques qui se soucient du ressenti utilisateur.<\/p>\n<h2>6. Yellow Lab&nbsp;: outil de test de vitesse de pages web<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-96149 size-large\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-1024x511.png\" alt=\"test performance yellow lab\" width=\"770\" height=\"384\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-1024x511.png 1024w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-300x150.png 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-768x384.png 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-1536x767.png 1536w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-60x30.png 60w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-370x185.png 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-270x135.png 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-570x285.png 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs-740x370.png 740w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2017\/03\/test-performance-yellowlabs.png 1774w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/p>\n<p><a class=\"yellowlab\" href=\"https:\/\/yellowlab.tools\/\" target=\"_blank\" rel=\"noopener noreferrer\">Yellow Lab<\/a> est un autre outil tr\u00e8s complet, bien qu&#8217;un peu plus technique que les pr\u00e9c\u00e9dents, pour analyser les performances de votre site web.<\/p>\n<p>Son analyse, qui porte sur 11 cat\u00e9gories diff\u00e9rentes, est tr\u00e8s vaste&nbsp;: du poids de la page au Javascript, en passant par la complexit\u00e9 du CSS, c&#8217;est une vraie mine d&#8217;informations.<\/p>\n<h2>Utilisez des outils de test de performance de site<\/h2>\n<p>Avec ces outils de test de performance, vous pourrez vous faire une bonne id\u00e9e des performances de votre site web et mieux comprendre les probl\u00e8mes qu&#8217;il rencontre.<\/p>\n<p>Pour optimiser les performances de votre site (vitesse, poids&#8230;), vous pouvez aussi faire appel \u00e0 un <a href=\"https:\/\/www.codeur.com\/developpeur\/web\" target=\"_blank\" rel=\"noopener noreferrer\">d\u00e9veloppeur web freelance<\/a> sur Codeur.com.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les facteurs de performance comme la vitesse ou le poids d&#8217;une page web sont cruciaux. Il est donc essentiel de tester les performances de son site et d&#8217;identifier ses points d&#8217;am\u00e9lioration.<\/p>\n","protected":false},"author":67,"featured_media":96153,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[19],"tags":[80],"class_list":["post-12268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-referencement-naturel","tag-outils"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>6 outils de test de performance gratuits pour votre site<\/title>\n<meta name=\"description\" content=\"Testez la performance de votre site web gratuitement avec les meilleurs outils en ligne. 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