If you run your HTML5 Web page through the w3.org validator, there’s a good chance your document’s outline will not show up. I wish I could offer a good explanation of why that is. But I can’t. However, if you want to see your HTML5 document’s outline, paste your URL in the URL box of this HTML5 outliner. (This online Web-page outliner will also outline pages with other doctypes.)
The nSiteful Tech Blog (the official blog of nSiteful Web Builders, Inc. since January of 2013) is where I (Jeff Cohan) and (occasionally) associates will be posting articles of potential interest to like-minded techies, nSiteful clients who are playing active roles in the maintenance of their own Web sites and blogs, and pretty much anyone interested in how Web strategies and tools can help them reach their goals.