Netlify experienced a series of distributed denial of service (DDoS) attacks against its infrastructure, starting on January 12, and causing regional downtime for sites hosted on the platform. The attacks were significant enough to cause several switches in data centers to become unresponsive, but Netlify's automated traffic director was able to route around the affected nodes. However, this highlighted an edge case in failover rules, which caused DNS servers to return empty records, leading to site downtime for up to 30 minutes. The platform experienced a second wave of attacks on January 12, with improved automatic rerouting but still regional downtime due to "flapping" edge nodes. Despite the outages, Netlify's system remained fast and responsive during the attacks, thanks to its capacity, and improvements made to failover systems as a result of the attack have reduced the risk of similar failures in the future.