GitHub Availability Report: July 2023

In July, GitHub experienced a degraded performance incident on the 21st, due to a partial power outage at one of its redundant data centers, lasting 59 minutes. The outage began at 13:07 UTC, and GitHub updated the status of six services to yellow by 13:12 UTC, with most customer impact occurring in the first ten minutes as requests were rerouted. Although the initial disruption was quickly managed, the status remained at yellow until full capacity was restored to ensure caution. In response, GitHub is reviewing power feeds with datacenter partners and identifying improvements to enhance recovery time and traffic failover efficiency. Real-time updates are available on their status page, and further details can be found on the GitHub Engineering Blog.