Domains and ports to whitelist to allow Loom on your network

If you're recording on a protected network, there can be firewalls/proxy's blocking Loom. This can block your ability to record successfully. 

Issue symptoms

  • Repeated failed recordings (video ending prematurely, can't start a recording, etc...).
  • Loom application displays as a blank box.

  • Abrupt recording endings - due to 1006 websocket error. 
  • Recording error from Chrome: 


Here's how to fix this:

Whitelist the below addresses and IPs in your firewall. 

When whitelisting access for Loom, it's best to whitelist all subdomains in order to ensure future services we add behind a new subdomain don't get blocked.

Please whitelist:


These are the whitelist specifications:



IP Addresses



  • wss
  • https


  • 80
  • 443

To do this:

You may need to contact your network administrator to configure your firewall to whitelist the above networks.

For additional information on our security infrastructure, read our Loom Security White Paper

 Questions, comments, concerns? Contact us here 👈   

Happy Recording! 🎥 😄

1 out of 1 found this helpful



Article is closed for comments.