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 3
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.
Email & deliverabilityAug 5, 2026 · 5 min read
DMARC policy: none, quarantine or reject — which should you use?
A practical guide to choosing p=none, quarantine or reject in your DMARC record, and how to move to full enforcement without breaking legitimate mail.
Monitoring & StatusAug 3, 2026 · 6 min read
Infrastructure drift detection: get alerted the moment your DNS or config changes
Learn how drift detection catches out-of-band DNS and config changes before they cause an outage, and how to get alerted the moment it happens.
Domains & DNSJul 31, 2026 · 6 min read
DNS propagation explained: why changes take time and how to check
DNS propagation isn't a global sync — it's TTL-based caching. Here's what actually controls the delay and how to check a change safely.
Domains & DNSJul 29, 2026 · 5 min read
Cloudflare DNS not updating: causes and how to fix it
Changed a DNS record in Cloudflare and nothing seems different? Here's how to tell a caching delay apart from a real config problem, and how to fix each.
Domains & DNSJul 27, 2026 · 7 min read
20 DNS security checks every domain should pass
A practical DNS security checklist covering DNSSEC, CAA, SPF/DKIM/DMARC, zone transfers and nameserver hygiene — with commands you can run today.
Servers & CloudJul 22, 2026 · 10 min read
Hetzner vs DigitalOcean vs AWS: price, performance and features compared
An even-handed comparison of Hetzner, DigitalOcean and AWS on pricing, instance types, bandwidth, SLAs and Kubernetes — so you can pick the right one for the job.
Monitoring & StatusJul 20, 2026 · 5 min read
Website monitoring explained: uptime, performance and SSL checks
A practical breakdown of uptime, performance and SSL/expiry monitoring — what each one actually catches, how often to check, and where they overlap.
Domains & DNSJul 19, 2026 · 5 min read
How to catch an expiring domain: drop-catching & backorders explained
What really happens when a domain expires, how drop-catching works, and when to use a backorder vs your own registrar — a practical guide to catching the names you want.
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