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The CompleteStatus Blog

Monitoring & security, explained

Practical, no-fluff guides on uptime and security monitoring — fixing security headers, email authentication, SSL certificates, and consolidating your monitoring stack.
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All posts security 23 uptime 21 monitoring 19 incidents 18 outages 10 tls 9 https 9 dns 8 ssl 8 performance 8 email-security 6 security-headers 5
Latest post soc2 compliance

How Monitoring Supports SOC 2 and Compliance Evidence

How uptime and security monitoring supports SOC 2 audits, cyber-insurance questionnaires and client security reviews — and what evidence they really ask for.
· 6 min read · Read it
How Monitoring Supports SOC 2 and Compliance Evidence
change-detection defacement

Website Change Detection — Catch Defacement Before Your Visitors Do

How website change detection works — rendered DOM vs raw HTML diffing, tuning out dynamic noise, and catching defacement before your visitors do.
· 6 min read
security-headers csp

How to Fix Your Content-Security-Policy (with copy-paste nginx, Apache and Caddy configs)

A practical guide to building a Content-Security-Policy that actually works — how CSP is parsed, the directives that matter, and ready-to-paste server configs.
· 4 min read
email-security deliverability

Why Are My Emails Going to Spam? A Developer's Deliverability Triage Guide

Emails going to spam? A step-by-step triage for developers — SPF/DKIM/DMARC alignment, IP and domain reputation, blacklists, and Gmail's bulk-sender rules.
· 6 min read
agencies msp

White-Label Monitoring for Agencies — What It Actually Requires

What white-label monitoring really requires for agencies and MSPs — resale rights, unbranded status pages, per-client workspaces — and how to package it.
· 6 min read
email-security dmarc

SPF, DKIM and DMARC Explained — and How to Stop Email Spoofing

A developer-friendly walkthrough of SPF, DKIM and DMARC — why p=none still leaves you spoofable, and how to roll out enforcement without breaking deliverability.
· 5 min read
email-security dkim

DKIM Key Rotation — Selectors, 2048-Bit Keys, and Zero-Downtime Swaps

How DKIM signing and selectors work, choosing 1024 vs 2048-bit keys, and a dual-selector DKIM key rotation process that swaps keys with zero downtime.
· 7 min read
dns dns-monitoring

DNS Monitoring — What to Actually Watch (and Why Hijacking Is the Scary Part)

Which DNS records to monitor, how to spot hijacking and unauthorized changes, TTL strategy, registrar security — and why domain expiry trumps it all.
· 7 min read
monitoring consolidation

You're Paying for 5 Monitoring Tools. Here's How to Consolidate to One.

A small team often pays separately for uptime, status, cron, DMARC and SSL monitoring. Here's the real monthly math — and how to collapse it into one dashboard.
· 4 min read
safe-browsing security

Google Safe Browsing Blacklist Removal — Fixing "Deceptive Site Ahead", Step by Step

Google flagged your site with "Deceptive site ahead"? Why legit sites get blacklisted, how to clean up, request a review, and how long delisting takes.
· 6 min read
freshping migration

Freshping Is Gone — Here's Where to Migrate (and How)

Freshping shut down in March 2026. Here's a practical migration checklist — and how to move to a platform that also grades your security posture.
· 4 min read
cors security-headers

CORS Explained — the Mental Model, and the Misconfigurations That Actually Get Exploited

CORS protects users, not your server. The right mental model, the dangerous patterns — origin reflection, wildcard with credentials — and correct configs.
· 6 min read

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