About W3Schools

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About Advertising
How to advertise at W3Schools.

About Statistics
W3Schools' statistics.

About Helping W3Schools
How you can help W3Schools.

About Copyright
About the copyright on W3Schools content.

About Privacy
About the privacy practices for W3Schools.

W3Schools' Online Certification Program The perfect solution for professionals who need to balance work, family, and career building. More than 4000 certificates already issued!

The HTML Certificate documents your knowledge of HTML, XHTML, and CSS.

The JavaScript Certificate documents your knowledge of JavaScript and HTML DOM.

The XML Certificate documents your knowledge of XML, XML DOM and XSLT.

The ASP Certificate documents your knowledge of ASP, SQL, and ADO.

The PHP Certificate documents your knowledge of PHP and SQL (MySQL).