Been using your plugin a while, saves a lot of time tracking down broken links etc... invaluable for SEO.
I find some URLs (not images BTW) are reporting 403 Forbidden that when checking the HTTP header are 200.
I'm assuming it's something to do with the server settings for the domains the links are on (similar to hotlink protection for images).
Do you know what sort of server settings are causing this?
I own http://www.stallion-theme.com/ and when I link to anything on the domain from other sites I get 403 errors. It's hosted on basic Godaddy Apache web hosting. It's the only domain I have on Godaddy web hosting, my other domains (over 100) are on VPS and not affected.
In the process of moving content from the above to a new site and have dozens of valid 301 redirects. The old links are reporting 404
200 is reported 403
301 is reported 404
My concern is other users of your plugin (I've recommended it to my theme users) will see the above sites links on their blogs as broken and delete them! Want to change the server settings so it's no longer misreporting 200 and 301 incorrectly, any ideas what to look for?