Zoom says GoDaddy took it down for hours

A screwup by MarkMonitor and GoDaddy was responsible for a two-hour outage affecting Zoom’s videoconferencing services yesterday, according to the company.

The widely used services were offline between 1825 and 2012 UTC yesterday because GoDaddy Registry, apparently acting under MarkMonitor’s instructions, shut down the zoom.us domain.

Screenshots posted to social media show zoom.us returning an NXDOMAIN error in web browsers. In-progress conference calls were reportedly shut off mid-stream.

Zoom said in a statement:

On April 16, between 2:25 P.M. ET and 4:12 P.M. ET, the domain zoom.us was not available due to a server block by GoDaddy Registry. This block was the result of a communication error between Zoom’s domain registrar, Markmonitor, and GoDaddy Registry, which resulted in GoDaddy Registry mistakenly shutting down zoom.us domain.

Zoom, Markmonitor and GoDaddy worked quickly to identify and remove the block, which restored service to the domain zoom.us. There was no product, security, network failure or Distributed Denial of Service (DDoS) attack at Zoom during the outage. GoDaddy and Markmonitor are working together to prevent this from happening again.

It’s not entirely clear what is meant by “server block”, but it sounds consistent with a serverHold EPP status, where a registry prevents a domain from resolving in the DNS.

GoDaddy is the registry for .us domains. MarkMonitor is a hands-on corporate registrar dealing primarily with high-value brand clients.

Zoom is the incredibly popular conferencing service that grew to such popularity during the pandemic one could almost argue that it could be considered critical infrastructure.

While two hours downtime is hardly the end of the world, it’s still one hell of a screwup.

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Tagged: .us, godaddy, markmonitor, zoom