I've run into this issue with several postings and have just shrugged my shoulders at taking if further. Our state's IT group disallows any of the link shorteners, since it could take someone to a blocked site and bypass the filtering process. When posting, PLEASE use full links, I'm guessing that mine isn't the only state practicing this.
Colleagues, if you would like the full link for anything, or have difficulty accessing the resources shared, let me know. I'll quickly fix it. I use bit.ly as a link shortner for a couple of reasons, but mainly to see if anyone is accessing the resources I've shared. It helps me determine your interest and then adjust posts accordingly. It does not show who clicks a link, but rather - the number of clicks on the link.
I will work on another way to share information while keeping your interests in focus.