DNSSEC Explained: What It Protects and How to Check It
DNSSEC adds cryptographic signatures to DNS records so resolvers can verify they are authentic. Learn what it protects, how the chain of trust works, and how to check any domain.
dns-records
SPF, DKIM, and DMARC Explained: How They Work Together
Want SPF, DKIM, and DMARC explained without the vendor sales pitch? Each protocol solves part of email spoofing. Here is what they do, how they work together, and what to set up first.
How Long Does DNS Propagation Take? A Practical Answer
Wondering how long DNS propagation takes? Most changes go live in 5 to 60 minutes when TTL is set right. Here’s what actually controls the wait — and how to make it minutes.
How to Set Up SPF and DMARC Without Breaking Email
Need to set up SPF and DMARC without breaking email delivery? The safe order matters more than the records themselves. Here is the staged playbook — inventory senders first, publish in order, monitor before enforcing.
DNS Records Explained: A, AAAA, MX, CNAME, TXT, NS
Understand every DNS record type you’ll actually use, from A and MX to TXT and NS, with real examples. Plus the new HTTPS and SVCB records that speed up HTTP/3 and enable Encrypted Client Hello.