Port Monitoring: Check TCP and UDP Services
Port monitoring tells you a listener answered on host and port. Here is what that proves, what it does not, and which ports deserve a check.
#guide
21 posts tagged "Guide".
Incident Communication: Templates and a Cadence
Incident communication works when the first update ships in minutes. Here are the templates, the cadence by severity, and who posts each one.
Failover Testing: Prove the Standby Actually Works
Failover testing proves your standby takes over before a real outage runs the experiment for you. Here is how to run the drill and measure it.
Keyword Monitoring: Catch Broken Pages Returning 200
Keyword monitoring checks that a phrase is still in your HTML, so you catch the broken page that keeps answering with a healthy 200 status.
Response Time Monitoring: Phases, Percentiles, Regions
Response time monitoring works when you read the timing waterfall, alert on p95 instead of the mean, and compare probe regions rather than blending them.
API Monitoring: Assertions Beyond a 200 OK
API monitoring only earns its place when the check asserts on the response body, not just the status code. Here is the assertion set to start with.