It stands for the World Wide Web Consortium.
The W3C is an international community that develops open standards to ensure the long-term growth of the Web. It’s led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe. The consortium includes member organizations, a full-time staff, and the public working together to develop Web standards.
Standards developed by W3C often form the basis for how web technologies are used and interpreted by web browsers and other web-based applications. These standards cover areas such as HTML, CSS, accessibility guidelines, and more.
In the context of domain investing, understanding W3C standards can help you assess the potential value of a domain based on how well any associated websites adhere to these standards. Websites that follow W3C standards tend to offer a better user experience, which can in turn increase traffic and potentially make the domain more valuable.