Validating your HTML syntax is now an option. You know the problem. You publish your page. So you move on to your next project. Then you start getting those nasty letters to the Webmaster.
Images take too long, broken links, etc., etc.
Applied Testing and Technology Home Page ApTest provides tools and services for automated software testing for applications, Web sites, middleware, OSs, and compilers. Here are some links to related resources. Software's Home Page InfoLink Link Checker, the Dead Link Killer. InfoLink Link Checker verifies all the links in your HTML pages. Try the shareware or the freeware version for a full evaluation.