For social integrations, several domains have to be added to the whitelist so users can log in to their choosen social site.
NOTE: You have to be sure that you add these in the correct format. You check out this article to check what format is needed on different hardware / firmwares.
Domains For Facebook:
facebook.com
facebook.net
fbcdn.net
licdn.net
licdn.com
akamaihd.net
akamai.net
akamaiedge.net
cloudfront.com
atdmt.com
fbsbx.com
For iOS guests using the CNA browser, in some countries you may need to add also:
doubleclick.net
google.com
Domains For Twitter:
twimg.com
Domains For Instagram:
instagram.com
akamaihd.net
This host have to be added also for Twitter:
api.twitter.com