Current status: All our ducks are in a row.

What is this site? We monitor the status of coursera.org and our class sites, and we update here whenever there are interruptions in service.

Tuesday, October 22, 2013

2013-10-22: [Resolved] Site-wide interruptions

At 20:27 PST, normal access to our site was resolved. We are currently investigating and working with AWS to understand the issues. We will continue to monitor for further problems.

We treat downtime very seriously and apologize for the inconvenience. Thank you for your patience.

2013-10-22: Site-wide interruptions

We are currently experiencing issues with our servers that are causing site-wide interruptions. We are working to resolve the issue. Please be patient as we investigate the problem.

Friday, October 4, 2013

2013-10-04: [Update] Unusual site activity

At 20:54 Pacific time, we deployed remediation code to neutralize the unusual activity. We will continue to monitor the situation, however Coursera have been restored to full functionality. Thank you for your patience.

2013-10-04: Unusual site activity

At 7:58pm pacific time, unusual activity commenced on our site. Most of the site remained functional. We have begun remediation attempts to further quarantine this activity, and prevent it from impacting other users and classes. Thank you for your patience.