Tag Archives: webstandards


W3C’s new unified validator that can check feeds, stylesheets and XHTML/HTML markup at once.

Cool URIs don’t change

A hilarious, yet utterly serious page on w3.org stressing how important persistent URIs are.

Historical note: At the end of the 20th century when this was written, “cool” was an epithet of approval particularly among young, indicating trendiness, quality, or appropriateness. In the rush to stake our DNS territory involved the choice of domain name and URI path were sometimes directed more toward apparent “coolness” than toward usefulness or longevity. This note is an attempt to redirect the energy behind the quest for coolness.


Not just a “what’s my IP address” site – FindMeByIP.com shows all kinds of information about your browser, including support for HTML5 Forms and CSS3 selectors. An invaluable resource.