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W3C is an international organization that develops web standards and guidelines for accessibility, internationalization, privacy and security. Learn more about W3C's work, members, events, and how to get involved.
- Markup Validator
This validator checks the markup validity of Web documents...
- Standards
W3C web standards are optimized for interoperability,...
- Groups
Permanent Groups. In addition to these groups, W3C operates...
- Get involved
W3C uses a number of online tools for work, education, and...
- Resources
This page lists the various resources to help W3C Members,...
- News and events
Get fresh content across W3C news, blog, press releases, and...
- About
W3C standard development process. The proven standards...
- My account
The World Wide Web Consortium (W3C) is an international...
- Markup Validator
W3Schools is the world's largest web developer site, offering free tutorials, exercises, quizzes, and certificates for HTML, CSS, JavaScript, Python, SQL, and many other languages and technologies. Whether you want to create your own website, learn data science, or explore artificial intelligence, W3Schools has something for you.
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as RSS/Atom feeds or CSS stylesheets, MobileOK content , or to find broken links, there are other validators and tools available.
El Consorcio WWW, en inglés: World Wide Web Consortium (W3C), es un consorcio internacional que genera recomendaciones y estándares que aseguran el crecimiento de la World Wide Web a largo plazo. [3]
The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards.
W3C web standards are blueprints of a consistent and harmonious digitally connected world. They are implemented in browsers, blogs, search engines, and other software that power our experience on the web. Learn about the W3C process, the promise of web standards, and the wide array of applications they enable.
Conoce los estándares y grupos del W3C que desarrollan protocolos y tecnologías para el diseño, la presentación y la interacción de la web. Descubre cómo mejoran la accesibilidad, la interoperabilidad, la seguridad y la experiencia de los usuarios.
