Ethan WalkerinMonitoring Strategy & DevOpsPreventing Alert Storms with Grouping and DeduplicationA technical walkthrough on configuring alert managers and routing rules to condense hundreds of failing underlying service checks into a single incident context.May 4•7 min read
Ethan WalkerinMonitoring Strategy & DevOpsDefining SLIs and SLOs That Trigger Meaningful PagesTransition from theoretical SLOs to practical burn-rate alerts that only wake up the on-call engineer when user experience is actively deteriorating.May 4•7 min read
Ethan WalkerinMonitoring Strategy & DevOpsWhy CPU and Memory Spikes Make Terrible AlertsExplains the engineering pitfalls of alerting on resource utilization metrics instead of user-facing latency and error rates.May 1•7 min read
Ethan WalkerinMonitoring Strategy & DevOpsThe Complete Guide to Beating Alert Fatigue and Fixing On-CallA comprehensive deep dive into auditing noisy alerts, defining actionable service level objectives (SLOs), and transitioning to symptom-based alerting.May 1•9 min read
Ethan WalkerinReliability & UptimeWhat Actually Causes Downtime in Modern Web ApplicationsDowntime in modern web applications is rarely caused by a single failure. In practice, outages usually happen because multiple small issues align across multiple layers.Feb 28•3 min read
Ethan WalkerinSSL, Domains & TrustPostmortem: When Expired Certificates Take Down Global InfrastructureA technical analysis of how major companies still suffer devastating outages due to missed certificate renewals and internal monitoring gaps.Mar 15•3 min read
Ethan WalkerinSSL, Domains & TrustWhy Wildcard Certificates Hide Production FailuresWildcard certificates are convenient but create massive blast zones. Learn how an expiring wildcard takes down dozens of subdomains simultaneously.Mar 15•4 min read
Ethan WalkerinSSL, Domains & TrustThe Complete Guide to Automated SSL Certificate MonitoringA comprehensive guide to TLS lifecycles, common expiration failures, and how to implement robust synthetic monitoring to catch certificate issues.Mar 15•5 min read
