Zoom’s major outage on April 16, 2025, which lasted about 90 minutes, was caused by a mistake from GoDaddy. A “server block” was mistakenly placed on the zoom.us domain due to a communication error between Zoom’s domain registrar, Markmonitor, and GoDaddy Registry, which manages the .us domain space. This mistake made Zoom’s main services, including meetings and VoIP phones, inaccessible — even Zoom’s status page was down.
Cisco’s ThousandEyes confirmed the outage was a DNS problem, and restoring access required users to flush their DNS caches manually. Zoom, GoDaddy, and Markmonitor collaborated to fix the issue and stated there was no security breach or DDoS attack. They are now working on steps to prevent this kind of problem from happening again.
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