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SitePoint.com - With a vast variety of web design tutorials and articles coupled with a vibrant and well informed community, SitePoint the natural place to go to grow your online business

The web, animation and midlets developers resource.

XML Check is free online XML and Sitemap validation service and software. It does strict scheme validation, finds all document structure issues and reports errors with line and column numbers

XML Sitemap Generator is a free online service to create Google Sitemaps. Unlimited version available.

CSE HTML Validator is a powerful and easy to use offline HTML, XHTML, CSS, JavaScript, and PHP syntax checker, HTML validator, XHTML validator, accessibility checker, and link checker for Microsoft Windows. A free edition is also available.

With this free email validation service you can easily verify if an email address is real and valid. We also offer Email List Verification & Cleaning and an Online API for Email Verification.

Total Validator is an (X)HTML validator, an accessibility validator, a spell checker, and a broken links checker all rolled into one tool allowing one-click validation of your entire site.