The Webalert Blog
Expert insights on website monitoring, uptime optimization, SSL management, and building trust with status pages.
RSS FeedExpert insights on website monitoring, uptime optimization, SSL management, and building trust with status pages.
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How traceroute works, how to read its output, why hops time out, and how to use it with ping and MTR to find where latency and packet loss happen.
Blue-green vs canary deployments compared — how each works, their trade-offs, the role of monitoring and rollback, and when to choose one over the other.
Why a Docker container shows 'unhealthy', how to read HEALTHCHECK logs, debug docker-compose health checks, and fix the most common causes fast.
What idempotency means, how idempotency keys make retries safe, exactly-once vs at-least-once delivery, and how to build reliable APIs and webhooks.
Black-box vs white-box monitoring compared — what each one sees, where each one fails, and why resilient teams run both. A practical guide with examples.
What chaos engineering is, how a controlled experiment works, the role of monitoring and blast radius, and how to start small without causing real outages.
What the four DORA metrics measure — deployment frequency, lead time, change failure rate, and time to restore — why they matter, and how to track them.
Latency, traffic, errors, and saturation — what Google's four golden signals mean, why they work, how to measure each one, and how to alert on them.
What incident severity levels (SEV1–SEV5 / P1–P5) mean, how to define them, who they page, and how to classify incidents consistently under pressure.
RED (Rate, Errors, Duration) vs USE (Utilization, Saturation, Errors) — what each method measures, when to use which, and how they fit together.
How to monitor what AI engines say about your brand — track sentiment and accuracy across ChatGPT, Perplexity & Gemini, and catch negative drift early.
How to monitor competitors in ChatGPT, Perplexity & Google AI Overviews — measure share of voice, see who gets cited, and catch competitive shifts early.
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