The Webalert Blog
Expert insights on website monitoring, uptime optimization, SSL management, and building trust with status pages.
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UptimeRobot vs Webalert: Uptime Monitoring Comparison 2026
Comparing UptimeRobot vs Webalert for website uptime monitoring. See features, pricing, check intervals, and alert integrations to choose the best tool.
June 23, 2026
3 min read
Database Replication Lag: Causes, Monitoring, and Fixes
What database replication lag is, why it happens, and how to monitor and reduce it so replicas don't serve stale data or break your reads during failover.
June 22, 2026
7 min read
Database Connection Pool Exhaustion: Causes and Fixes
Why apps hit 'too many connections', how connection pool exhaustion happens, and how to diagnose, size, and fix it before it takes your database down.
June 19, 2026
7 min read
Dead Letter Queues Explained: Handling Failed Messages
What a dead letter queue (DLQ) is, why messages end up there, and how to monitor, alert on, and reprocess them so failed events don't vanish silently.
June 19, 2026
6 min read
Graceful Shutdown and SIGTERM: Deploy Without Dropping Requests
How graceful shutdown and SIGTERM handling let services finish in-flight requests during deploys and pod restarts, and how to avoid dropped connections.
June 19, 2026
6 min read
Kubernetes CrashLoopBackOff: Causes and How to Fix It
What CrashLoopBackOff means, the common reasons a pod keeps restarting, and a step-by-step way to diagnose and fix the crash loop with kubectl.
June 18, 2026
6 min read
Kubernetes ImagePullBackOff and ErrImagePull: How to Fix
What ImagePullBackOff and ErrImagePull mean, why Kubernetes can't pull your container image, and how to diagnose and fix the most common causes.
June 18, 2026
6 min read
Kubernetes OOMKilled (Exit Code 137): Causes and Fixes
Why Kubernetes kills pods with OOMKilled and exit code 137, how memory requests and limits cause it, and how to diagnose and fix out-of-memory restarts.
June 18, 2026
6 min read
Circuit Breaker Pattern: Failing Fast to Stay Resilient
How the circuit breaker pattern stops a failing dependency from cascading into a full outage: the closed, open, and half-open states, and what to monitor.
June 17, 2026
7 min read
Connection Refused vs Reset vs Timed Out: What They Mean
Connection refused, reset, and timed out mean very different things. What each error reveals about where a failure is, and how to monitor and debug them.
June 17, 2026
7 min read
Retry Storms: Exponential Backoff and Jitter Explained
Why naive retries turn a blip into a retry storm, and how exponential backoff, jitter, and retry budgets stop a system from amplifying its own failures.
June 17, 2026
7 min read
Active vs Passive Monitoring: What's the Difference?
Active vs passive monitoring compared: how synthetic checks and real-traffic observation differ, what each one catches and misses, and why you need both.
June 16, 2026
7 min read