To use 1Password behind a firewall, add port 443 and the following domains to your whitelist:
| Accounts on 1Password.com | Accounts on 1Password.eu | Accounts on 1Password.ca |
|---|---|---|
| *.1password.com | *.1password.eu | *.1password.ca |
| a.1passwordusercontent.com | c.1password.com | c.1password.com |
| f.1passwordusercontent.com | a.1passwordusercontent.eu | a.1passwordusercontent.ca |
| f.1passwordusercontent.eu | f.1passwordusercontent.ca |
No user data is hosted on c.1password.com. It only provides Watchtower database and app updates.
Learn more about 1Password in your region.