The Webalert Blog
Expert insights on website monitoring, uptime optimization, SSL management, and building trust with status pages.
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3xx Redirect Codes Explained: 301, 302, 303, 307 & 308
What 3xx HTTP redirect codes mean — 301, 302, 303, 307, 308 — how they differ, which to use for SEO, method/cache behavior, and how to monitor redirects.
June 3, 2026
8 min read
How to Create a Website Status Report (Template & Metrics)
Build a website status report stakeholders trust: which uptime, performance and incident metrics to include, a reusable template, and how to automate the data.
June 3, 2026
6 min read
Perplexity AI Visibility: How to Track & Get Cited
How to track and improve your brand's visibility in Perplexity — how its citations work, what to measure, and how to monitor mentions and sources over time.
June 3, 2026
6 min read
ChatGPT Visibility Tracking: Monitor Your Brand in ChatGPT
How to track and improve your brand's visibility in ChatGPT — how it picks and cites sources, what to measure, and how to monitor mentions over time.
May 31, 2026
7 min read
How to Check if a Port Is Open (Windows, macOS & Linux)
Check if a port is open with telnet, netcat (nc), nmap, PowerShell Test-NetConnection and /dev/tcp on any OS — plus how to monitor ports continuously.
May 31, 2026
8 min read
Network Jitter Explained: Causes, Measurement & Monitoring
What jitter is, why it breaks VoIP, video and gaming, how it's measured, acceptable thresholds, and how to monitor it alongside latency and packet loss.
May 31, 2026
6 min read
4xx Client Errors Explained: 400, 401, 403, 404 & 429
What 4xx HTTP client errors mean — 400, 401, 403, 404, 405, 408, 410, 429 — their causes, how they differ from 5xx, and how to monitor and alert on them.
May 30, 2026
10 min read
Cloud SLAs Compared: What AWS, Azure & GCP Actually Guarantee
Compare AWS, Azure and GCP uptime SLAs — what 99.9%, 99.95% and 99.99% really guarantee, how service credits work, and why the SLA is not your real uptime.
May 30, 2026
9 min read
RTO vs RPO Explained: Setting Disaster Recovery Objectives
RTO vs RPO made clear — what each means, how they differ, how to calculate them, how they relate to MTD, MTTR and backups, and how monitoring protects both.
May 30, 2026
9 min read
Apdex Score Explained: Measuring App Performance Satisfaction
What Apdex is, how the score is calculated from satisfied, tolerating and frustrated requests, how to set the T threshold, and where Apdex helps or misleads.
May 29, 2026
8 min read
HTTP/3 & QUIC Monitoring: What Changes and What to Watch
How HTTP/3 and QUIC change monitoring: UDP 443, 0-RTT, connection migration, fallback to HTTP/2, and the new failure modes and metrics you must watch.
May 29, 2026
9 min read
Latency Percentiles Explained: p50, p95, p99 & Why Averages Lie
Understand p50, p95, p99 and p99.9 latency percentiles, why averages hide outages, how to set SLOs on tail latency, and how to alert on the right number.
May 29, 2026
9 min read