The World Wide Web Consortium (W3C) is an international community that develops open standards to ensure the long-term growth of the Web. W3C standards define an Open Web Platform for application development that has the unprecedented potential to enable developers to build rich interactive experiences, powered by vast data stores, that are available on any device. As the web evolves, so do the standards. W3C create new standards and revise existing ones. They also provide guidance on how to implement standards, in the form of tutorials, reference material, and software.
There are a few different types of compliance testing services that are offered by the W3C. These services can help to ensure that your website is up to par with the latest web standards, and that it is compatible with a variety of different browsers and devices.
There are a variety of w3c compliance testing services available, but not all of them are created equal. It's important to do your research and choose a service that will be able to provide you with the most comprehensive and accurate testing results. By taking the time to find the right w3c compliance testing service, you can be sure that your website is compliant with all the latest standards and guidelines.