Whitelist OptiSigns IP addresses & ports

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If you need to configure firewall, here are the list of OptiSigns IP addresses and Port to whitelist:

Port: please whitelist HTTPS port 443

IP Address:

• api.optisingsapp.com and api.optisigns.com
• 205.185.216.10 (File)
• 52.217.39.148 (File)
• 162.243.189.2 (Files)
• 45.55.116.139 (API)
• 134.209.131.177 (API)
• 172.217.2.227 (API)
• 174.138.126.183 (API)

IMPORTANT NOTE: we use CDN to optimize file distribution to your devices. Some firewall may block CDNs. If you experiencing issues where your device is online, but when you assign files, it's just black screen because device cannot download files. You can contact us at support@optisigns.com to disable CDN feature for your account.

There's no set of IP address for Social Media and some other apps like Facebook, Instagram, Youtube, Google Calendar, so if you really restricting HTTPS access by IP, you may not be able to use those app.