My Link is Blocked?

I remember a while back that I read someone here say that they know how to post your non-dangerous link on Facebook. I don't remember who responded on these forums. I use a few URL shorteners, but my LinkedIn short link URL, by Bit short URL and other Facebook says are dangerous... what the heck...?

Is anyone familiar with how to get my links on my facebook comments?

Did you use Google shorter url or other?

maybe you share your link too much, it could be suspicous

Some SEO resources shows your website URL as Blocked due to Firewall issue.