Guidance on Check your Links

The w3c tool for link checking at least provides for recursive testing of an entire site, but the output is a bit overwhelming, making it hard to tell whether there is something I should be paying attention to or not. For example:

I think every node comes up with Lines: 374, 375 http://www.cintegrity.com/%2523
Status: 404 Not Found
Well, that points to < /div > < !--/#page -- > and the string 2523 doesn't appear anywhere in the source of the page.

There are a whole lot of things reported as not checked according to robot exclusion rules, but they mostly seem to be things like .css files or images or whatever that really shouldn't be being indexed by robots. Shouldn't there be a way to not have to plow through so much "yes, that's right" stuff?

I get a bunch of Line: 112 http://www.cintegrity.com/node redirected to http://www.cintegrity.com/ well, yeah, that's Drupal, no?

Up to these two steps, this module has been mostly a delight to use, but it is hard for me to know whether there is any action indicated here.