Web shield blocking Agilebits Website

I have the latest version Mac 10.11.5 and Avast 11.9 (46174) and I can not access this site: https://agilebits.com/downloads and https://agilebits.com using Safari, Chrome, or Firefox. I have to turn off Web Shield in order to access the site. This is a false-postivite and I used https://www.virustotal.com to search the URL and it showed everything is ok with the site.

The story with Agilebits is the same as with sweden.se that was discussed recently here on the forum. In short - their IPv6 is broken. For more info, see the “sweden.se” thread.