Certificates & SSL
How DNS, domains, certificates and monitoring actually work — and what to check first when they don’t. No vendor pitches, no listicles.
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.
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.
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.
Certificates & SSLJul 17, 2026 · 6 min read
SSL certificates explained: what they are and how the chain of trust works
A plain-English guide to how SSL/TLS certificates work, why the chain of trust matters, and how DV, OV and EV validation actually differ.
Certificates & SSLJul 6, 2026 · 5 min read
Let's Encrypt vs commercial SSL certificates: which do you actually need?
A practical, even-handed comparison of Let's Encrypt and paid SSL/TLS certificates, covering validation levels, lifetimes, warranties and when each makes sense.
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