The new issue of code4lib as a interesting article "Tools for Reducing and Managing Link Rot in LibGuides".
"This article describes tools for managing links in SpringShare’s LibGuides, a popular web platform for libraries. LibGuides includes a built-in link checker for only some links. Instructions are provided on how to run an automated link checker on all links within a single guide. Persistent Uniform Resource Locators (PURLs), hyperlinks which are maintained centrally and rarely break, are recommended for library electronic resources. Special consideration is given to the fact that many libraries using the LibGuides platform may not have easy access to in-house information technology (IT) personnel. A method is presented for implementing PURLs entirely within the LibGuides platform."
The automated link checker suggested is Xenu Xenu Link Sleuth which is fairly well known though clear instructions are given.
The second part of the article using LibGuides “Redirect URL" feature coupled with "Friendly URL" feature is pretty clever though, allowing you to create a PURL using just Libguides.
Full article here