Link verification—what a fun job. You've got a site with dozens, hundreds, or perhaps even thousands of links. After all, that's the purpose of the Web—to be able to link from one page to another. But the resources referenced by those links (both internal links to your Web site, and external links to other Web sites) frequently move (either accidentally or deliberately). And then you've got that ugly, evil condition—a bad link. In fact, it's such a common problem that I've been using various tools that I'd written about in this column to perform link verification. It started with a simple link checker in October 1996, then advanced to a full cross-referencing tool in June 1997, and then a parallel link checker in July 1998. Well, it's time to write another tool.
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