Initial Outage Report

On Friday, October 21, PagerDuty experienced a significant outage caused by sophisticated DDoS attacks on a major DNS provider, resulting in nearly three hours of service disruption, which included 30 minutes of complete unavailability. This incident has led to a backlog of notifications and further DNS-related issues, prompting PagerDuty to conduct a thorough post-mortem analysis. The company acknowledges its failure to meet high expectations and expresses regret, committing to transparency with upcoming posts detailing the event timeline and a root-cause resolution action plan. Despite the challenges of this unforeseen "black swan" event, PagerDuty emphasizes its dedication to learning from the incident to enhance its resilience and reliability, pledging to maintain open communication and improve its services for the future.