The CMS Behind The Curtain
If your organization uses a content management system, your people have probably done this a time or two:
Fortunately, the site uses an IP whitelist, since it didn’t show me the admin interface when I clicked the link:
That HTTP Error 403.6 – Forbidden: IP address of the client has been rejected. error indicates I’m not on the whitelist or inside the firewall or something and I cannot, rightly, edit the site.
So if you’re using a CMS, remember to do your automated link checking frequently and remember that if you’re running the link checker from a machine with allowed admin access to the site, this link will not trigger an error message. Instead, it will return a login page or the actual editing page (if you’re logged in).
You need to run your link check from a machine not allowed access to the CMS, or you need to run the link check and run a report that will identify the targets of outgoing links and then find any outgoing links to your CMS system.
Odds are you’ll find one.


