Infrastructure, explained
How DNS, domains, certificates and monitoring actually work — and what to check first when they don’t. No vendor pitches, no listicles.
Earlier articles — Page 2
Monitoring & StatusSep 9, 2026 · 5 min read
Infrastructure drift explained: what it is and how it creeps in
Infrastructure drift is the gap between what your config says and what's actually running. Here's how it happens, how tools detect it, and how to stay ahead of it.
Servers & CloudSep 7, 2026 · 6 min read
IPv4 vs IPv6 explained: differences, dual-stack, and why it matters
A practical comparison of IPv4 and IPv6 addressing, headers, and NAT — plus what dual-stack means for the servers you run today.
Monitoring & StatusSep 4, 2026 · 5 min read
What is synthetic monitoring? Scripted checks vs real users explained
Synthetic monitoring runs scripted checks against your site or API on a schedule, catching outages before real visitors do. Here's how it works and when to use it.
Certificates & SSLSep 2, 2026 · 6 min read
Certificate transparency explained: what CT logs are and why they matter
Certificate Transparency logs make certificate issuance public and auditable. Here's how CT works and how to use it to catch misissued certificates early.
Email & deliverabilityAug 26, 2026 · 5 min read
Why your emails go to spam (and how to fix it)
Emails land in spam because of broken authentication, poor sender reputation, or content that trips filters — here's how to diagnose and fix each one.
Domains & DNSAug 21, 2026 · 6 min read
What is DNSSEC and should you enable it?
DNSSEC stops attackers from forging DNS answers, but it's opt-in everywhere and easy to misconfigure. Here's the threat it solves, the trade-offs, and when to turn it on.
Email & deliverabilityAug 19, 2026 · 7 min read
MX record not working: how to diagnose and fix broken mail routing
A step-by-step guide to diagnosing why your MX record isn't routing mail, covering priorities, trailing dots, CNAME targets and stale records.
Servers & CloudAug 17, 2026 · 5 min read
How to secure your infrastructure in 2026: a practical checklist
A practitioner's checklist for securing DNS, TLS, servers and monitoring in 2026 — covering zero trust, DNSSEC, certificate automation and supply chain hygiene.
Domains & DNSAug 14, 2026 · 4 min read
Why infrastructure inventory is important (and what to track)
An unmanaged domain, a forgotten server, or an expired certificate can take down production. Here's why infrastructure inventory is the foundation of reliable, secure operations.
Servers & CloudAug 12, 2026 · 5 min read
When should you use cloud firewalls?
Cloud firewalls filter traffic before it reaches your server; host firewalls filter it after. Here's when to use each, and the sane defaults to start with.
Monitoring & StatusAug 10, 2026 · 5 min read
Ping vs HTTP vs HTTPS monitoring: what each check actually proves
Ping, HTTP and HTTPS checks answer different questions about uptime. Here's what each one actually proves and why relying on ping alone is risky.
Certificates & SSLAug 7, 2026 · 4 min read
Why browsers show "Not Secure": causes and fixes
Understand exactly why Chrome, Firefox and Safari flag a site as "Not Secure" and how to fix each cause, from missing HTTPS to mixed content and bad certificates.
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