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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
ssl tls

SSL Certificate Monitoring — Never Get Caught by an Expired Cert Again

Expired TLS certificates are a common self-inflicted outage. Why auto-renewal isn't enough, what to actually monitor, and how to get alerted weeks before expiry.
· 4 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
ssl lets-encrypt

Let's Encrypt Renewal Failures — When 90-Day Automation Silently Stops

Let's Encrypt automation fails quietly — broken certbot upgrades, rate limits, blocked port 80, lost cron jobs. Independent expiry monitoring is the net.
· 6 min read
tls ssl

TLS 1.0 and 1.1 Are Being Shut Out — Time to Check What Your Server Negotiates

Chrome, Firefox and Edge now block TLS 1.0 and 1.1. How to test what your server negotiates, enable TLS 1.2/1.3 on nginx and Apache, and handle legacy clients.
· 6 min read
ssl tls

One-Year Certificates Are Coming — Apple Just Changed the Rules

From September 1, Safari will reject new TLS certificates valid longer than 398 days. What Apple's unilateral move means and how to get renewals ready.
· 6 min read
ssl tls

Certificate Lifetimes Just Got Cut to 825 Days — and the Trend Points Shorter

Newly issued TLS certificates are now capped at 825 days. Why the industry keeps cutting lifetimes, and why calendar reminders won't save you anymore.
· 6 min read
dns ssl

CAA Records Explained — Control Which CAs Can Issue Your Certificates

From September 8, every certificate authority must check CAA records before issuing. What CAA is, the syntax, and how to add it without breaking anything.
· 6 min read
ssl lets-encrypt

Let's Encrypt Is Out of Beta — Free HTTPS for Everyone (and a New Way to Fail)

Let's Encrypt left beta with millions of free certificates issued. How ACME automation works, setting up Certbot with nginx — and the new silent failure mode.
· 6 min read

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