The web's governing body has launched a new validation tool called Unicorn that checks the quality of your website's code against multiple web standards at once.

W3C, the organization says, will help ensure interoperability by making robust test suites and validation services available to the community for future technologies.

The MarkUp Validation Service checks for compliance with different HTML versions and the emerging XHTML standard—an evolutionary change to HTML markup that's XML-compliant.

It is the latest standard of HTML technology that supports the world's Internet "HTML5"Was released as a recommendation.