AzMonitor Blog
Monitoring & Reliability
Engineering Guides
126 in-depth articles on uptime monitoring, performance, SLA management, incident response, and reliability engineering — written for DevOps and SRE teams.
Featured
Best Uptime Monitoring Tools in 2026: Full Comparison
Comprehensive comparison of the best uptime monitoring tools in 2026. Compare features, pricing, check intervals, and global coverage to find the right fit.
SSL Certificate Monitoring: Never Let Your Cert Expire Again
SSL certificate monitoring ensures your certificates never expire unexpectedly. Learn to set up multi-tier alerts and automated monitoring for all your domains.
Core Web Vitals Monitoring: LCP, INP, CLS Guide for 2026
Monitor Core Web Vitals (LCP, INP, CLS) in 2026. Learn thresholds, measurement tools, and how to improve scores that directly affect Google search rankings.
Latest articles
Synthetic Monitoring vs Real User Monitoring: When to Use Each
Synthetic monitoring vs real user monitoring: understand the difference, when to use each, and why the best teams use both together for complete coverage.
Uptime Monitoring for Mobile Apps and Backend APIs
Monitor mobile app backends, REST APIs, and the services that power your iOS and Android applications. Protect user experience with targeted API uptime monitoring.
Monitoring for SaaS: Building Reliability Into Your Subscription Business
Comprehensive monitoring strategy for SaaS companies — from tenant-specific monitoring and billing system health to churn prevention through reliability.
Monitoring for Healthcare: HIPAA-Compliant Observability for Medical Applications
Understand the unique monitoring requirements for healthcare applications — HIPAA compliance, PHI protection, high availability for critical systems, and audit logging.
Monitoring Protected Pages: Authenticated Endpoint Checks
Monitor authenticated endpoints, protected APIs, and login-required pages. Covers API key auth, Bearer tokens, Basic auth, and multi-step login flows.
DORA Metrics: Measuring Software Delivery and Operational Performance
Learn the four DORA metrics for software delivery performance — deployment frequency, lead time, MTTR, and change failure rate — and how to use them to improve engineering.
Image Optimization Monitoring: WebP, AVIF, and Lazy Loading
Monitor image optimization to catch oversized images, missing modern formats, and missing lazy loading that hurt your Core Web Vitals and page speed scores.
Chaos Engineering: Testing System Reliability by Breaking Things on Purpose
Learn how chaos engineering works, how to implement chaos experiments safely, and how to use controlled failures to find and fix reliability weaknesses before users do.
DNS Monitoring Explained: Catching Outages at the Source
DNS monitoring catches domain resolution failures before users do. Learn how DNS monitoring works, what it detects, and how to configure it for your domains.
TCP Port Monitoring: How It Works and When to Use It
TCP port monitoring verifies services are accepting connections without HTTP overhead. Learn when to use TCP monitoring and how to configure it correctly.
SRE Fundamentals: What Site Reliability Engineering Is and How It Works
An introduction to Site Reliability Engineering (SRE) — the Google-pioneered discipline that applies software engineering to operations and defines how reliability-focused teams work.
RUM vs Lab Data: Which Performance Metrics Should You Trust?
RUM vs lab data: understand when to trust each, how they differ, and how to reconcile gaps between synthetic test results and real user experience data.
Monitoring for Fintech: High-Stakes Observability for Financial Services
Learn the unique monitoring requirements for fintech applications — from transaction monitoring and PCI compliance to high availability, fraud detection, and audit trails.
How to Calculate Website Uptime Percentage Correctly
Learn how to calculate website uptime percentage correctly, including measurement windows, exclusions, and how monitoring check intervals affect accuracy.
SSL Certificate Renewal: Automating with Let's Encrypt
Automate SSL certificate renewal with Let's Encrypt and Certbot. Set up automatic renewal, validate it works, and monitor for renewal failures.
Server Response Time: Benchmarks and Optimization Strategies
Understand server response time benchmarks, what causes slow responses, and proven strategies to reduce server processing time below 200ms.
The Three Pillars of Observability: Logs, Metrics, and Traces
Understand the three pillars of observability — logs, metrics, and distributed traces — and how to implement them for comprehensive production visibility.
DNS Propagation Monitoring: Tracking Changes Across the Global DNS System
Learn how to monitor DNS propagation, track record changes across global resolvers, and detect DNS issues that affect your service availability.
Why Weekend Monitoring Is Critical for Modern Businesses
Weekend outages are often longer and more costly than weekday incidents. Learn why 24/7 monitoring matters and how to build weekend coverage without burning out your team.
Network Waterfall Analysis: Understanding Your Load Chain
Analyze network waterfalls to identify bottlenecks in your page load chain. Learn to read waterfall charts and optimize critical resource loading paths.
WebSocket Monitoring: Observing Real-Time Connection Health
Learn how to monitor WebSocket connections for availability, message latency, connection stability, and error rates in real-time applications.
HTTP/2 Monitoring: Understanding and Observing Modern Protocol Performance
Learn how HTTP/2 features like multiplexing, server push, and header compression affect monitoring, and how to properly observe HTTP/2 connections in production.
Uptime Monitoring for Microservices Architectures
Uptime monitoring for microservices requires a different approach. Learn health check patterns, dependency mapping, and alert strategies for distributed systems.
JavaScript Performance Monitoring: Bundle Size & Runtime
Monitor JavaScript performance: bundle size growth, runtime execution time, memory leaks, and framework-specific metrics. Prevent JS from killing page speed.