How often to run a full speed test.
How often to probe connectivity while online.
How often to re-probe while offline.
Per-probe socket timeout.
How many hosts must fail before declaring an outage.
One host:port per line, tried in order. Port defaults to 53.
host:port
Also measure against speed.cloudflare.com on each cycle, alongside Speedtest.net. Shows as a second line on the history charts.