I found 2 broken links on https://docs.plone.org/manage/deploying/wsgi.html, namely 'Plone 4 with WSGI' and 'Plone 5 with WSGI'
Please submit a pull request on the repository to correct them: https://github.com/plone/documentation
Sure. Any idea of where they should point? The 'Zope 4 and WSGI' is also broken but I can change it to https://zope.readthedocs.io/en/latest/operation.html#using-alternative-wsgi-server-software
It look like comments.gmane.org is down which is affecting the Plone 4 link. I'll leave it for now. I found the other 2
For sites that are permanently down—and there tend to be quite a few from over a decade of bitrot—I use the Internet Archive to find a valid URL.