W3C validation is the process of checking a website’s code to determine if it follows the formatting standards. If you fail to validate your website’s pages based on W3C standards, your website will most likely suffer from errors or poor traffic owing to poor formatting and readability.
1. Help Improve Rankings in Search Engines
W3C validation helps you to get better rankings in search engines (SEO). Errors in your code can affect your site’s performance and make a big impact on your site’s SEO. Search engines check the HTML or XHTML code of your website when searching.
If they find invalid HTML or XHTML code – meaning code that does not follow the official rules, you might be removed from their indexes. If there is an error on your web page code, robots will stop searching your whole website’s content.
2. Validation Helps Teach Best Practices
Having a standards-compliant code is the best practice for web design. It also teaches and encourages best practices for web design. While many veterans have learned to create error-free code and make relatively few validation errors, most beginners make more errors.
3. Improved Website User Experience
W3C validated websites will be easily accessed by people with modern browsers. Validation improves usability and functionality because your users are less likely to run into errors when displayed on browsers compared to non-validated websites.
4. Make Website Browsers Friendly
Making website browsers friendly is one of the biggest reasons why W3C code validation was introduced. Websites that are not validated may display correctly in one browser but not in other browsers. Many websites face cross-browser problems.
5. Multiple Device Accessibility
With the recent boom in smartphones and tablets, more people will be accessing the Internet from mobile devices than desktop computers.