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
ecommerce uptime

Monitoring E-Commerce Before Peak Season — A Pre-Black-Friday Checklist

Black Friday readiness for e-commerce: monitor the money path, sweep certificates before code freeze, baseline response times and set up on-call now.
· 6 min read
health-checks api-monitoring

Health Check Endpoints Done Right — Designing /health So It's Worth Monitoring

Shallow vs deep checks, /live vs /ready, real status codes and load-balancer cascade failures — how to design health check endpoints worth monitoring.
· 6 min read
outages incidents

The CrowdStrike Outage — Lessons From the Biggest IT Failure Ever

A bad CrowdStrike channel file blue-screened ~8.5 million Windows machines on July 19. What the biggest IT outage ever teaches teams of every size.
· 6 min read
security supply-chain

The polyfill.io Supply-Chain Attack — Every Script Tag Is a Trust Decision

The polyfill.io CDN is injecting malicious code into 100,000+ sites. What happened, why SRI didn't save anyone, and how to defend against the next one.
· 6 min read
wordpress monitoring

Monitoring WordPress Sites — What Breaks, and How to Catch It

WordPress runs over 40% of the web — and fails in WordPress-specific ways. Keyword checks, wp-cron heartbeats, defacement detection and xmlrpc abuse.
· 6 min read
maintenance status-page

Maintenance Windows Done Right — Planned Downtime Without the Panic

Planned maintenance shouldn't look like an outage — picking windows, pausing monitors, 503 + Retry-After, SLA carve-outs and a comms template that works.
· 6 min read
email-security deliverability

Gmail and Yahoo's New Sender Requirements — Your Four-Month Prep Checklist

Google and Yahoo will require SPF, DKIM, DMARC, one-click unsubscribe and sub-0.3% spam rates for bulk senders in February 2024. A prep checklist.
· 5 min read
on-call incidents

On-Call for Small Teams — You're Not Google, and That's Fine

On-call for a 2–5 person team is not Google's playbook shrunk down. Honest rotations, what deserves a 3 a.m. page, runbooks and humane escalation.
· 6 min read
monitoring synthetic

Synthetic Monitoring vs Real User Monitoring — What Each Catches, What Each Misses

Synthetic monitoring vs real user monitoring — what each catches, what each misses, what they cost, and why small teams should start synthetic-first.
· 6 min read
alerting alert-fatigue

Alert Fatigue — How Teams Learn to Ignore Their Own Alarms, and How to Undo It

Alert fatigue is a design failure, not a discipline problem. Why teams tune out their own alarms — and the confirmation, severity and escalation fixes.
· 6 min read
metrics incidents

MTTD, MTTA, MTTR, MTBF — Reliability Metrics Without the Buzzword Soup

MTTD, MTTA, MTTR and MTBF without the buzzword soup — what each measures, a worked incident timeline, why averages mislead, and the cheapest win.
· 6 min read
heroku migration

Heroku's Free Tier Is Gone — A Migration Checklist That Doesn't Break Production

Heroku's free dynos and Postgres shut down November 28. Where hobby projects are moving — Render, Fly.io, Railway, a VPS — and how to cut over safely.
· 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