Blog

Sep 25, 2026 · 10 min read

DNS Record Types Explained: How to Read a Zone Without Guessing

A field guide to A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, CAA and PTR records — what each one does and the mistakes that show up in real zones.

Sep 24, 2026 · 8 min read

How to Flush DNS on Windows, macOS, Linux, and Browsers

The local DNS cache commands that actually help after a change on Windows, macOS, Linux and browsers, and what no website can flush for you.

Sep 23, 2026 · 8 min read

TTL Explained: How to Change DNS Without Taking the Site Down

TTL decides how long a mistake lives in other people’s caches. Here is how to plan a DNS change so the cutover is boring.

Sep 21, 2026 · 9 min read

Why Your Email Lands in Spam: SPF, DKIM and DMARC in Practice

Most deliverability problems start in DNS, not in your mail client. A practical walk through MX, SPF, DKIM and DMARC with the mistakes that actually matter.

Sep 21, 2026 · 8 min read

DNS Propagation: Why Changes Take Time (and How to Verify)

Learn what DNS propagation really means, how TTL drives resolver caches, and how to verify a change across public resolvers without the myths.

Sep 19, 2026 · 8 min read

A DNS Migration Checklist That Survives Contact With Reality

Moving zones between providers is easy the day you do it and painful the week after. A staged checklist that catches the records everyone forgets.

Sep 18, 2026 · 8 min read

Nameservers vs Hosting: Stop Mixing the Two

Why changing your web host is not the same as changing your DNS host, and a safe order for migrating records without losing mail.

Sep 17, 2026 · 9 min read

Reverse DNS (PTR) Records: Who Actually Needs Them

PTR records live in someone else’s zone, which is why they confuse people. Here is how reverse DNS works and when it genuinely matters.

Sep 15, 2026 · 8 min read

DNS Explained: How the Internet Finds Your Website

A clear walkthrough of recursive resolvers, authoritative nameservers, the record types that matter, and how TTL decides when changes take effect.

Sep 11, 2026 · 9 min read

MX, SPF, DKIM, and DMARC: Email Auth in One Sitting

Connect mail routing records with the SPF, DKIM and DMARC policies inbox providers expect, and see which misconfiguration breaks first.