DNS explained: the part that breaks at the worst moment
A, CNAME, MX, TXT, TTL — the handful of records that decide whether people reach your site and your email arrives. Plus why 'propagation' is mostly a myth.
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DNS & email delivery
The records that decide whether people reach your site and whether your email lands in an inbox or a bin.
4 articles
Your domain is a security asset. Lock it down.
A hijacked domain redirects your traffic, intercepts your email and impersonates you at your own address. Four controls that prevent nearly all of it.
SPF, DKIM and DMARC: why your email stopped arriving
Since 2024 the big providers reject unauthenticated mail rather than filtering it. Three DNS records decide whether you reach the inbox or the bin.
Moving a website without downtime (or losing your email)
Migrations go wrong in predictable ways. The TTL trick, the order of operations, and the one mistake that takes email down for a day.
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