Sarcastic? I can't tell. I didn't mean to imply it was trivial, but the concept of crawling your own documentation is quite sound and should just be part of go

Sarcastic? I can't tell. I didn't mean to imply it was trivial, but the concept of crawling your own documentation is quite sound and should just be part of good document maintenance. There are some plenty good crawlers already. I'm guessing one of them has a 404 report that could hopefully be used to find dead links.