Starting around 5AM CST, May 5th, Minneapolis, MN location started to experience some DNS resolution errors to specific URLs. Upon further research, we narrow down issue to AWS DNS servers, such as NS-47.AWSDNS-05.COM. Each time MN location queries AWS DNS servers, the resolution fails. We do not believe it is an issue with AWS DNS, because our other locations resolve OK. Also, MN location works fine with most of other DNS providers. Because of large number of services rely on AWS DNS, for now we disabled monitoring from MN location to avoid false positives. We are actively working to restore the service from MN monitoring location. Please check this page for additional updates as they come: https://www.dotcom-monitor.com/blog/category/dotcom-monitor-system-status/

Top 25 Server Monitoring Tools
In this article we give our expert picks of the top 25 server monitoring tools to help monitor your website’s uptime and give your users the best experience, starting with our own solution at Dotcom-Monitor. Learn why server monitoring is an essential part of any monitoring strategy.