Evaluation du site w3schools.com
Généré le 30 Août 2024 11:08
Vieilles statistiques? UPDATE !
Le score est de 57/100
Optimisation du contenu
Titre
W3Schools Online Web Tutorials
Longueur : 30
Parfait, votre titre contient entre 10 et 70 caractères.
Description
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
Longueur : 168
Idéalement, votre balise META description devrait contenir entre 70 et 160 caractères (espaces compris). Utilisez cet outil gratuit pour calculer la longueur du texte.
Mots-clefs
HTML, Python, CSS, SQL, JavaScript, How to, PHP, Java, C, C++, C#, jQuery, Bootstrap, Colors, W3.CSS, XML, MySQL, Icons, NodeJS, React, Graphics, Angular, R, AI, Git, Data Science, Code Game, Tutorials, Programming, Web Development, Training, Learning, Quiz, Exercises, Courses, Lessons, References, Examples, Learn to code, Source code, Demos, Tips, Website
Bien, votre page contient une balise META keywords.
Propriétés Open Graph
Bien, cette page profite des balises META Open Graph.
| Propriété | Contenu |
|---|---|
| title | W3Schools.com |
| image | https://www.w3schools.com/images/w3schools_logo_436_2.png |
| image:type | image/png |
| image:width | 436 |
| image:height | 228 |
| description | W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. |
Niveaux de titre
| H1 | H2 | H3 | H4 | H5 | H6 |
| 13 | 59 | 30 | 35 | 11 | 1 |
- [H1] Learn to Code
- [H1] HTML
- [H1] CSS
- [H1] JavaScript
- [H1] Python
- [H1] SQL
- [H1] Code Editor
- [H1] W3Schools Spaces
- [H1] My Learning
- [H1] Become a Plus User
- [H1] Color Picker
- [H1] Code Game
- [H1] Web Templates
- [H2] Tutorials
- [H2] Exercises
- [H2] Certificates
- [H2] All Our Services
- [H2] PHP
- [H2] jQuery
- [H2] Java
- [H2] C++
- [H2] W3.CSS
- [H2] Bootstrap
- [H2] C
- [H2] C#
- [H2] R
- [H2] Kotlin
- [H2] Node.js
- [H2] React
- [H2] JSON
- [H2] Vue
- [H2] MySQL
- [H2] W3.JS
- [H2] XML
- [H2] Sass
- [H2] Icons
- [H2] RWD
- [H2] Graphics
- [H2] SVG
- [H2] Canvas
- [H2] Raspberry Pi
- [H2] Cyber Security
- [H2] Colors
- [H2] Git
- [H2] Matplotlib
- [H2] NumPy
- [H2] Pandas
- [H2] SciPy
- [H2] ASP
- [H2] AngularJS
- [H2] AppML
- [H2] Go
- [H2] TypeScript
- [H2] Django
- [H2] MongoDB
- [H2] Statistics
- [H2] Data Science
- [H2] Typing Speed
- [H2] HowTo
- [H2] Code Game
- [H2] Spaces
- [H2] PostgreSQL
- [H2] Excel
- [H2] DSA - Data Structures and Algorithms
- [H2] Machine Learning
- [H2] Artificial Intelligence
- [H2] Help the Lynx collect pine cones!
- [H2] Exercises and Quizzes
- [H2] Kickstart your career
- [H2] How To Section
- [H2] Contact Sales
- [H2] Report Error
- [H3] HTML and CSS
- [H3] Data Analytics
- [H3] Web Building
- [H3] JavaScript
- [H3] Web Building
- [H3] Backend
- [H3] Data Analytics
- [H3] Web Building
- [H3] HTML and CSS
- [H3] Data Analytics
- [H3] JavaScript
- [H3] Backend
- [H3] Data Analytics
- [H3] HTML and CSS
- [H3] Data Analytics
- [H3] Programs
- [H3] JavaScript
- [H3] Programs
- [H3] Programs
- [H3] Backend
- [H3] Data Analytics
- [H3] With the world's largest web developer site.
- [H3] HTML Example:
- [H3] CSS Example:
- [H3] JavaScript Example:
- [H3] Python Example:
- [H3] SQL Example:
- [H3] If you want to create your own website, check out W3Schools Spaces.
- [H3] It is free to use, and does not require any setup:
- [H3] And unlock powerful features:
- [H4] Free Tutorials
- [H4] References
- [H4] Create a Website
- [H4] Exercises
- [H4] Quizzes
- [H4] Get Certified
- [H4] Log in / Sign Up
- [H4] Pathfinder & My Learning
- [H4] Upgrade
- [H4] Where To Start
- [H4] Code Editor (Try it)
- [H4] Videos
- [H4] Templates
- [H4] Web Hosting
- [H4] Create a Server
- [H4] How To's
- [H4] CSS Framework
- [H4] Browser Statistics
- [H4] Typing Speed
- [H4] AWS Training
- [H4] Color Picker
- [H4] Code Game
- [H4] Set Goal
- [H4] Newsletter
- [H4] For Teachers
- [H4] For Businesses
- [H4] Contact Us
- [H4] Not Sure Where To Begin?
- [H4] With our online code editor, you can edit code and view the result in your browser
- [H4] Track your progress with our free "My Learning" program.
- [H4] Log in to your account, and start earning points!
- [H4] W3Schools' famous color picker:
- [H4] Test your skills!
- [H4] Browse our selection of free responsive HTML Templates
- [H4] Code snippets for HTML, CSS and JavaScript
- [H5] A web server programming language
- [H5] A JS library for developing web pages
- [H5] A programming language
- [H5] A programming language
- [H5] A CSS framework for faster and better responsive web pages
- [H5] A CSS framework for designing better web pages
- [H5] Note: This is an optional feature. You can study W3Schools without using My Learning.
- [H5] Top Tutorials
- [H5] Top References
- [H5] Top Examples
- [H5] Get Certified
- [H6] For example, how to create a slideshow:
Images
Nous avons trouvé 13 image(s) sur cette page Web.
Bien, la plupart ou la totalité de vos images possèdent un attribut alt
Ratio texte/HTML
Ratio : 17%
Bien, le ratio de cette page texte/HTML est supérieur à 15, mais inférieur à 25 pour cent.
Flash
Parfait, aucun contenu FLASH n'a été détecté sur cette page.
Iframe
Dommage, vous avez des Iframes sur vos pages Web, cela signifie que son contenu ne peut pas être indexé par les moteurs de recherche.
Liens
Réécriture d'URLs
Bien. Vos liens sont optimisés!
Tiret bas dans les URLs
Nous avons détectés des soulignements dans vos URLs. Vous devriez plutôt utiliser des tirets pour optimiser votre référencement.
Liens dans la page
Nous avons trouvé un total de 266 lien(s) dont 0 lien(s) vers des fichiers
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Mots-clefs
Nuage de mots-clefs
learn reference certificate course html exercise web tutorial quiz css
Cohérence des mots-clefs
| Mot-clef | Contenu | Titre | Mots-clefs | Description | Niveaux de titre |
|---|---|---|---|---|---|
| learn | 91 |  |
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|
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| tutorial | 85 | |
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| certificate | 53 | |
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| reference | 43 | |
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| course | 40 | |
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Ergonomie
Url
Domaine : w3schools.com
Longueur : 13
Favicon
Génial, votre site web dispose d'un favicon.
Imprimabilité
Aucun style CSS pour optimiser l'impression n'a pu être trouvé.
Langue
Bien. Votre langue est : en.
Dublin Core
Cette page ne profite pas des métadonnées Dublin Core.
Document
Doctype
HTML 5
Encodage
Parfait. Votre charset est UTF-8.
Validité W3C
Erreurs : 19
Avertissements : 4
E-mail confidentialité
Attention! Au moins une adresse e-mail a été trouvée en texte clair. Utilisez une protection anti-spam gratuite pour cacher vos e-mails aux spammeurs.
HTML obsolètes
Génial! Nous n'avons pas trouvé de balises HTML obsolètes dans votre code.
Astuces vitesse
|
Excellent, votre site n'utilise pas de tableaux imbriqués. |
|
Mauvais, votre site web utilise des styles css inline. |
|
Mauvais, votre site web contient trop de fichiers CSS (plus de 4). |
|
Mauvais, votre site web contient trop de fichiers javascript (plus de 6). |
|
Parfait : votre site tire parti de gzip. |
Mobile
Optimisation mobile
|
Icône Apple |
|
Méta tags viewport |
|
Contenu FLASH |
Optimisation
Sitemap XML
Manquant
Votre site web ne dispose pas d’une sitemap XML, ce qui peut poser problème.
La sitemap recense les URLs que les moteurs de recherche peuvent indexer, tout en proposant d’éventuelles informations supplémentaires (comme la date de dernière mise à jour, la fréquence des changements, ainsi que leur niveau d’importance). Ceci permet aux moteurs de recherche de parcourir le site de façon plus efficace.
Robots.txt
http://w3schools.com/robots.txt
Votre site dispose d’un fichier robots.txt, ce qui est optimal.
Mesures d'audience
Manquant
Nous n'avons trouvé aucun outil d'analytics sur ce site.
Un outil de mesure d'audience vous permet d'analyser l’activité des visiteurs sur votre site. Vous devriez installer au moins un outil Analytics. Il est souvent utile d’en rajouter un second, afin de confirmer les résultats du premier.
PageSpeed Insights
Dispositif
Les catégories
WebWiki SEO Checker
WebWiki SEO Checker est un outil gratuit de référencement qui vous aidera à analyser vos pages web