It is becoming increasingly popular to publish RDF content for web sites alongside the HTML content. Sites that publish RDF using the W3C Best Practices will return RDF to clients that ask for it. Standard web browsers ask for HTML and XHTML. Using RDF Goggles, you can see what a Semantic Web client sees. As an example, enter projects.semwebcentral.org in the box below. Or try out the URL of your choice. The results will be displayed if the site returns RDF, XML, or (X)HTML. Otherwise the type returned will be displayed but the content will be suppressed.