W3C mobileOK Checker
Is your Web site mobile-friendly?
W3C mobileOK checker service, a tool geared towards facilitating the creation of mobile-friendly Web content. Statistics collected by this service provide an important insight into the state of compliance to the mobileOK standard. About 10% of the pages checked by the mobileOK checker are MobileOK, including highly visible sites such as Google and Wikipedia. These encouraging results indicate that the mobileOK checker is quickly becoming a valuable tool for Web content creators when authoring mobile Web content. This checker performs various tests on a Web Page to determine its level of mobile-friendliness. The tests are defined in the mobileOK Basic Tests 1.0 specification. A Web Page is mobileOK when it passes all the tests. Please refer to the About page for more details. If you wish to validate specific content such as markup validitation, or RSS/Atom feeds, or CSS stylesheets, or to find broken links, there are other validators and tools available.