Infrastructure, explained
How DNS, domains, certificates and monitoring actually work — and what to check first when they don’t. No vendor pitches, no listicles.
Email & deliverabilitySep 28, 2026 · 7 min read
SPF and DMARC across the top 10,000 domains: 2026 data
We ran our SPF and DMARC checkers over the 10,000 most popular domains. Only 55.7% of those that accept mail are fully protected.
Latest
AutomationNov 3, 2026
Ask your AI assistant what broke: InfraNest now works with Claude and ChatGPT
Monitoring & StatusNov 1, 2026
Spotting memory leaks, disk filling and process crashes before downtime
Monitoring & StatusOct 30, 2026
What a good status page says during an incident
Monitoring & StatusOct 28, 2026
Organizing a status page into two columns for readability
Earlier articles
AutomationOct 23, 2026 · 6 min read
Opening Jira or Linear issues from infrastructure events
Turn a certificate expiry or a monitor going down into a ticket your team already tracks — automatically, with the details filled in, in Jira or Linear.
Domains & DNSOct 21, 2026 · 5 min read
How to transfer a domain to another registrar, step by step
A practical walkthrough for moving a domain between registrars without downtime, covering unlocking, auth codes, timing, and the mistakes that cause failed transfers.
Monitoring & StatusOct 19, 2026 · 5 min read
Linking status page incidents to support conversations
Every status page incident can have a permanent link. Learn why that matters for support tickets, what the link should show, and how to use it well.
Certificates & SSLOct 14, 2026 · 5 min read
Wildcard vs SAN certificates: which one do you actually need?
Wildcard and SAN certificates solve different coverage problems. Here's how each works, where they fall short, and how to pick the right one for your domains.
Servers & CloudOct 12, 2026 · 7 min read
What a load balancer actually does (and when you don't need one)
Load balancers get bolted onto every architecture diagram by default. Here's what they actually do — health checks, routing, sessions — and when a single server is simpler and faster.
Servers & CloudOct 9, 2026 · 5 min read
How to read server metrics: rising trends vs one-time jumps
A CPU or disk reading on its own tells you nothing — learn the techniques for telling a one-time spike from a genuine rising trend before it pages you.
AutomationOct 7, 2026 · 6 min read
Why cron jobs break when daylight saving time changes (and how to fix it)
Daylight saving transitions make scheduled jobs run twice or not at all, shift maintenance windows and on-call alerts, and send log timestamps backwards. Here's the fix.
Domains & DNSOct 5, 2026 · 6 min read
Dangling DNS records and subdomain takeover: how to find and remove them
Learn how deleted cloud resources turn into dangling DNS records attackers can claim, and get a practical process for auditing and cleaning up a zone.
Monitoring & StatusOct 2, 2026 · 5 min read
Setting up alerts for pending server reboots and security updates
Learn how Linux servers track pending reboots and stalled security updates, and how to get alerted before a quiet server turns into an outage.
Servers & CloudSep 30, 2026 · 5 min read
Find and clean up unused reserved IP addresses
A reserved IP address keeps getting billed long after its server is gone. Here's how to find orphaned addresses across providers and clean them up safely.
Domains & DNSSep 25, 2026 · 5 min read
Move DNS between providers with a zone file
Manual DNS migration loses records and imports can silently fail. Learn how a standard zone file lets you preview every change before you switch providers.
AutomationSep 25, 2026 · 5 min read
Reduce manual infrastructure work: what to automate first
A practical priority order for automating infrastructure: DNS sync, certificate renewals, expiry alerts and dynamic IP updates, ranked by risk and effort.
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