1.2 External XHTML validation

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When you have completed your website and deployed it on the Internet, you can confirm that your pages are XHTML compliant. The W3C which means World Wide Web Consortium provides a validation service at:

http://validator.w3.org

After you visit the validator, enter the URL you want to check, and then you can advertise your website’s XHTML status by including the W3C’s logo and a link to the validator. The following piece of code inserts the validation icon and link on a page:

<a href="http://validator.w3.org/check?uri=referer">
<img alt="Valid XHTML 1.0 Transitional" height="31" src="http://www.w3.org/Icons/valid-xhtml10" width="88" />
</a>

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Table of Contents

Chapter 1 - HTML Web Standards
        Chapter 1.1 - Visual Studio and Standards
        » Chapter 1.2 - External XHTML validation
Chapter 2 - Creating Columns Using CSS
        Chapter 2.1 - Page Layout using <div> tags
        Chapter 2.2 - ASP.NET Document Outline
        Chapter 2.3 - Style Rules for <div> tags
Chapter 3 - Improving Web Page Performance
        Chapter 3.1 - Turning off ViewState
        Chapter 3.2 - Caching Content
                Chapter 3.2.1 - Page-Level Caching
                Chapter 3.2.2 - Cache Period
Chapter 4 - Accessibility Requirements
        Chapter 4.1 - Image Alternate Text
        Chapter 4.2 - Avoiding Table for Layouts
        Chapter 4.3 - Client-side Scripts
        Chapter 4.4 - Validating Web Accessibility
Chapter 5 - Increasing Web Page Usability
        Chapter 5.1 - Tab Order
        Chapter 5.2 - Access Keys
        Chapter 5.3 - Default Focus and Default Buttons

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