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As a blogger, it is important to validate your blog’s source code in order to make sure all the features are fully functional. Basically, as we all know it, every blog or website is built on programming source codes. Unfortunately, sometimes some minor errors might pop up in your blog due to the fact that programmers aren’t always the most meticulous type of people. That is where code validation comes in. Code validation test helps blog owner to identify errors in your blog and helps to rectify the problem. Here are the top 6 code validation tests for your blog.

1. W3C Markup Validation Service - This is the most used HTML validator on the Internet. It Traverses HTML and XHTML markup for syntax errors according to the standards set by The World Wide Web Consortium (W3C).

2. WDG HTML Validator - This excellent tool identifies syntax errors on pages driven by markup languages. It also has an option to recursively check for errors on every page in the website directory.

3. W3C CSS Validation Service - This tool checks Cascading Style Sheets (CSS) documents for errors in source code. It also gives warnings for code that doesn’t exhibit the best design practices.

4. RUWF? XML Syntax Checker - This tool checks for malformed data in XML documents.

5. W3C Feed Validation Service - This tool checks the syntax of Atom and RSS feeds for errors.

6. W3C Link Checker - This tool searches for and identifies broken links. Specifically checks that all the links are de-referenceable, no links and anchors are defined twice and warns about invalid http and directory redirects.