d27xxe7juh1us6.cloudfront.net

I have been repeatedly getting the following report from Bitdefender:

"msedge.exe attempted to establish a connection relying on an expired certificate to d27xxe7juh1us6.cloudfront.net"

which Bitdefender blocks. The identical warning crops up several times per hour when I am in the browser.

Is this a false alarm?

I do not wish to make it an exception unless I can be sure it is harmless.