Sorry for the wait everyone. I have just been really busy. But in my free time I have been working on this Mod/Addon, and I have fixed a lot of of the code, and some parts are completely rewritten. I still have to test it out on my live board for a few days, maybe a week or two just to be on the safe side.
The next update will also include a way to set it up on another domain or subdomain. This is how I have it setup on my site right now:
https://thetechgenius.net - My Site where vBulletin is installed
https://link.thetechgenius.net - This is the domain that the External Links get linked to via the Addon.
So all external links that are not on the white list, will show like this: https://link.thetechgenius.net/?http://vbulletin.org
You can actually click that link to see how it loads, and to test it out. You can also try it with your own link. Just put your link after the "?" (question mark).
Example: https://link.thetechgenius.net/?
http://yourlink.com
Please let me know what you think.