Security monitoring Header grades + copy-paste fixes Email security SPF / DKIM / DMARC monitoring Uptime & API Second-probe confirmed checks Status pages Hosted, white-label status LiveStatus TV walls Full-screen status on any TV Reports & SLA Scheduled PDF / CSV evidence
All features →
Free tools Pricing Blog Compare Docs
Sign in Start free
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.
RSS feed
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
status-page incidents

Status Page Best Practices — What a Great Public Status Page Looks Like

What separates a status page customers trust from an always-green wall nobody believes: component granularity, honest history, update cadence, and branding.
· 7 min read
email-security dmarc

Moving DMARC from p=none to p=reject — the Safe Migration Path

The safe way to move your DMARC policy from p=none to quarantine to p=reject — aggregate reports, pct= ramping, forwarder breakage and a realistic timeline.
· 6 min read
uptime monitoring

Uptime Monitoring Best Practices — Intervals, False Positives, and What 99.9% Actually Means

Check intervals, multi-location probes, keyword assertions, alert routing and what 99.9% really means — a practical uptime monitoring guide for 2026.
· 7 min read
security-headers csp

The Complete Guide to HTTP Security Headers in 2026

Every HTTP security header that matters in 2026 — CSP, HSTS, X-Frame-Options, Permissions-Policy, COOP/COEP — with copy-paste nginx, Apache & Caddy configs.
· 7 min read
performance ttfb

Why Is My Website Slow? — Diagnosing Latency Layer by Layer

DNS, TLS, TTFB, download, front-end weight — a layer-by-layer method for finding where your page's time actually goes, with a curl one-liner.
· 6 min read
checklist dns

The January Infrastructure Audit — A Checklist for Everything You've Been Ignoring

Expiring domains, stale DNS records, untested backups, orphaned access — the once-a-year infrastructure audit that prevents this year's outages.
· 6 min read
peak-season checklist

The Peak Season Readiness Checklist — Three Weeks to Black Friday

Black Friday is three weeks out. Code freeze, certificate sweeps, load tests, tighter checks, on-call rotas — the pre-peak checklist that works.
· 6 min read
monitoring keyword-checks

The Page Loads, But It's Broken — Catching Failures That Return 200

Soft failures — blank pages, dead checkouts, APIs returning errors with status 200 — slip past status-code monitoring. Content assertions catch them.
· 6 min read
incidents postmortems

Blameless Postmortems for Small Teams — A Practical Template

Why blame corrupts incident timelines, how to rebuild them from monitoring data, the five-whys trap, and a copy-paste postmortem template for small teams.
· 6 min read
ssl tls

47-Day Certificates Are Coming — What SC-081 Means for Your Renewal Process

The CA/Browser Forum just approved ballot SC-081 — TLS certificate lifetimes shrink from 398 days to 47 by 2029. Here's how to get ready now.
· 6 min read
tcp port-monitoring

TCP Port Monitoring — Watching the Services That Aren't Websites

HTTP checks miss mail servers, SSH and custom services. What a TCP port check proves, what it doesn't, and when a heartbeat is the better tool.
· 6 min read
outages retrospective

2024 — The Year in Outages, and What It Taught Us

CrowdStrike, polyfill.io and a year of cloud wobbles — what 2024's defining outages have in common and what small teams should carry into 2025.
· 6 min read

Monitor your site — free

Uptime, SSL, DNS, security-header grades and SPF/DKIM/DMARC — one dashboard, one bill. The free tier includes the security layer and allows commercial use.
Start monitoring free Try the free tools
Uptime is table stakes. We watch the rest — security headers, email authentication, certs and DNS, with the fix attached.
Start free
Product
Security monitoring Email security Uptime & API Status pages LiveStatus TV walls Reports & SLA Pricing
Free tools
Security header checker DMARC checker SSL checker DNS lookup Uptime test
Resources
Blog Compare All features Docs
Company
About Contact Status
Account
Sign in Start free Terms Privacy
© 2026 CompleteStatus. All rights reserved. CompleteStatus — operated in the United States · support@completestatus.com
Terms Privacy Docs