W3C Validation
The W3C (World Wide Web Consortium) is an international organization founded by Tim Berners-Lee in 1994, the same guy who invented the Web in 1989.
The W3C’s work involves validating web languages such as HTML and CSS, which are fundamental technologies for building websites.
Is your website W3C validated? Does the person who built your site even know about this?
Why Valid Code and Web Standards Matter for SEO, Accessibility, and User Experience
- Cross-Browser Compatibility: Ensures your website renders consistently across all major browsers and devices, reducing layout issues.
- Accessibility: Enhances support for screen readers and assistive technologies, improving usability for people with disabilities.
- SEO Benefits: Clean, semantic HTML helps search engines better understand and rank your content.
- Professionalism and Maintainability: Following web standards reflects good coding practices and makes future updates easier and less error-prone.
How to check if your website passes W3C validation
HTML markup checking
- Visit W3C Markup Validation Service opens in a new tab
- Put your website URL in the field and hit Check
CSS checking
- Visit W3C CSS Validation Service opens in a new tab
- Put your website URL in the field and hit Check
Note: One or two errors or warnings can be ignored, as they are not the faults of our websites. It’s because the validator does not recognize those new HTML and CSS features yet. And in general, some messages might not matter on the given website.