For outgoing connections:
*.snapaddy.com (all subdomains of snapaddy.com)
.snapaddy.com
.fonts.googleapis.com
.fonts.gstatic.com
www.bing.com  
google.com (google image search)
*.intercom.io
*.intercomcdn.com
*.intercomusercontent.com
*.intercomassets.com

For incoming connections:
18.197.111.134

Did this answer your question?