Recently I tested worldPing. There are always questions and I do not know if this is the right place for these questions.
I have imported the Alerting dashboard from https://grafana.com/dashboards/1962 and have activated an email channel.
Currently it appears that no more samples are being taken by south-carolina. The alerting dashboard now falsely asserts that the status would continually change between OK and No-Data. This results in lots of e-mails …
I have temporarily disabled the corresponding alerts, but this is not a solution.