Markup Validation

Markup validation is the process of checking a website’s code, such as HTML or XHTML, to ensure it follows the official standards set by organizations like the World Wide Web Consortium (W3C). This helps confirm the code is correctly written, well-structured, and free of errors. Valid code improves website accessibility, enhances browser compatibility, and can positively impact search engine rankings. Think of it as proofreading the technical blueprint of a website to ensure everything is accurate and functions as intended.