Q: How does eZ Publish manage links?

A: eZ Publish handles all links centrally. Internal links are managed as references so that e.g. moving an object (e.g. an article) will not break an internal link. External links are managed as central URLs meaning that one URL is only stored once and all content objects using that link refers to that central URL. This enables tracing of where a specific URL is used and can be modified centrally if e.g. the resource changes externally. eZ Publish does automatic periodic checking of the validity of external URLs enabling proper link management and removing dead links.

More information on URL handling