Thank you for your patience.
The Engineering team has adviced that the issue has been fixed.
Please have all users affected by this and verify. If you are still facing issues please open up a ticket on Support Portal, please.
Thank you.
Update 08/29/2019 11:18 AM 22 days
We are currently experiencing some SSL Certificate issues with xdref.com. We have identified the issue and are currently working to resolve it.
In the meantime have users Click on Advance and select Proceed to r.xdref.com
This is so they can still keep going to their links.
We appreciate your patience.