CentralNIC confirmed that there was indeed an issue with the .co nameservers, and they resolved it at approximately 06:30 UTC today. Our monitoring of both their DNS servers and downstream providers confirmed this.
We'll also provide a root cause analysis for this incident in the next few days.
Posted Jun 09, 2026 - 14:57 UTC
Update
We are working on implementing a fallback to a .com domain so that users on ISPs that are not fixing this will not see any issues starting calls.
Posted Jun 08, 2026 - 20:12 UTC
Identified
Users that are using their ISP's DNS service (specifically AT&T users in the southeast US and/or Texas) are experiencing intermittent problems accessing any .co domain, including daily.co. This may result in those users seeing an “Unable to join call” error in the browser when trying to join a call.
This is being caused by failures from the DNS servers that serve the .co TLD itself. Several third-party DNS providers like Google, Cloudflare, and Quad9 are working around this in order to continue to make .co domains available. To work around this, you can encourage your users to use a third-party DNS provider, like Cloudflare or Quad9.