Cron Job Monitoring: From Crontab to Monitors
Cron job monitoring starts with your crontab. Here is how to turn five schedule fields into an expected period, plus the DST trap that breaks them.
Knowledge hub
Cross-region confirmation, timing waterfalls, and the craft of quiet monitoring.
Browser Monitoring: Three Products, One Phrase
Browser monitoring means real user data, a scripted headless browser, or staff surveillance. Here is how to tell which one a vendor is selling you.
Status Page Examples: Six Public Pages, Graded
Six real status page examples judged on their component lists and machine-readable endpoints rather than their design, with what each one is worth copying.
Prometheus Blackbox Exporter: Setup and Blind Spots
A working Prometheus blackbox exporter config, the relabel rules that trip people up, and the vantage-point problem no tutorial mentions.
Load Balancer Health Check: Settings That Matter
A load balancer health check decides which backends get traffic. Here are the four parameters, the shallow-versus-deep trap, and what to return.
Kubernetes Health Check: Probes, Timing, Blind Spots
A kubernetes health check has three forms and three consequences. Here are the handlers, the timing arithmetic, and the restart storm to avoid.