Skip to main content

Field notes

DevOps & Performance Articles

Learn how to monitor servers, check website speed, and test APIs. Read practical guides to finding performance problems and investigating slow pages.

Showing 12 articles. Page 2 of 2.

Latest article

Content Change Detection Setup 2026

content monitoringLatest

Content Change Detection Setup 2026

Website content change detection compares your pages with a saved baseline and alerts you to unexpected changes on the next scheduled check. Self-hosted Changedetection.io has no plan limits, and the free tiers of Visualping (5 pages) and others are compared. Small businesses can review content changes alongside Visual Sentinel's other website checks.

Rai Ansar10 min read

All articles

  • Network Vulnerability Monitoring in 2026

    security monitoring

    Network Vulnerability Monitoring in 2026

    Review network exposure and relevant firmware advisories alongside device and intrusion observations. Self-hosted tools require configured coverage, tested alerts and ongoing maintenance.

    Rai Ansar10 min read

  • DNS Monitoring for Propagation Issues

    dns monitoring

    DNS Monitoring for Propagation Issues

    DNS monitoring helps teams investigate resolution differences and propagation issues. Visual Sentinel checks DNS records on a schedule alongside its other website monitoring layers.

    Rai Ansar11 min read

  • Database Performance Monitoring Guide

    database monitoring

    Database Performance Monitoring Guide

    Master database performance monitoring across MySQL, PostgreSQL, and MongoDB with our comprehensive 2026 guide. Discover essential metrics, AI-driven tools, and proven optimization strategies that keep your databases running at peak performance.

    Rai Ansar13 min read

  • Website Performance Monitoring 2026

    performance monitoring

    Website Performance Monitoring 2026

    High traffic events can make or break your website's success. Learn proven monitoring strategies to maintain optimal performance during traffic spikes and protect your revenue from slowdowns.

    Rai Ansar12 min read

  • Linux Server Monitoring After Updates

    uptime monitoring

    Linux Server Monitoring After Updates

    Linux server updates can silently break website performance through kernel changes, service restarts, and configuration drift. This guide shows DevOps teams how to implement comprehensive monitoring to catch post-update issues before they impact users.

    Rai Ansar13 min read

  • API Monitoring Best Practices Guide 2026

    api monitoring

    API Monitoring Best Practices Guide 2026

    API downtime can jump sharply in a year, and many incidents go undetected until users are impacted. Learn the essential API monitoring best practices to ensure reliability and performance in 2026.

    Rai Ansar16 min read

  • DNS Monitoring for E-commerce Sites 2026

    dns monitoring

    DNS Monitoring for E-commerce Sites 2026

    DNS failures can cost e-commerce sites thousands in revenue per hour. This comprehensive guide shows you how to implement effective DNS monitoring to protect your online store from costly outages and maintain customer trust.

    Rai Ansar12 min read

  • CDN Outage Analysis: 2026 Impact Report

    industry news

    CDN Outage Analysis: 2026 Impact Report

    What broke in Cloudflare's 18 November 2025 and 20 February 2026 outages and AWS's us-east-1 failure of 19 to 20 October 2025, how long each lasted, and which monitoring layers catch them.

    Rai Ansar13 min read

  • Core Web Vitals Optimization 2026 Guide

    website performance

    Core Web Vitals Optimization 2026 Guide

    Core Web Vitals directly impact e-commerce revenue, with poor performance affecting the shopping experience. This comprehensive 2026 guide covers INP optimization, monitoring strategies, and real-world implementation for DevOps teams.

    Rai Ansar14 min read

  • See what your visitors see

    Your first check is free when you add your site. Then try a paid plan for 7 days (card required) or subscribe, from $15 USD a month.

    Start 7-day trial