DNS & Domain Articles
Guides and tutorials to help you understand DNS, SSL certificates, and domain management.
How Long Does DNS Propagation Take?
Learn why DNS changes take time to propagate globally and what factors affect the speed. Plus tips to check and speed up propagation.
How to Check DNS Propagation
Three reliable methods to check and track DNS propagation...
What is DNS Propagation?
A complete beginner's guide to understanding DNS propagation - why DNS changes don't happen instantly and what's going on behind the scenes.
How to Speed Up DNS Propagation
Can't wait 48 hours? Learn 6 proven methods to minimize DNS propagation time and see your changes faster.
What is DNS TTL?
Complete guide to DNS Time to Live - what TTL means, how it affects propagation, and best practices for different scenarios.
How to Flush DNS Cache
Step-by-step guide to clear DNS cache on Windows, Mac, Linux, and Chrome browser to fix website loading issues.
What is an MX Record?
Learn what MX records are and how they route email to your mail server. Understand priority settings, multiple MX records, and common issues.
What is a DNS A Record?
Learn how A records connect domain names to IP addresses.
DNS Not Working? 7 Ways to Fix It
Troubleshoot and fix common DNS problems quickly.
Best Public DNS Servers (2026)
Compare the best public DNS servers for speed, privacy, and security.
How to Check Domain Age (3 Easy Methods)
Learn how to check domain age using free tools, WHOIS lookup, and the Wayback Machine.
What is a CNAME Record? (Simple Guide With Examples)
Learn what a CNAME record is, how it works, and when to use one. Understand the difference between CNAME and A records with real-world examples.
What is a DNS TXT Record?
Learn what a DNS TXT record is, how it works, and why it matters for email security. Understand SPF, DKIM, and DMARC with clear examples.
What is a DNS NS Record?
Learn what DNS NS records are, how they work, why they matter, and what happens when they're misconfigured. Includes real-world examples.
DNS vs Nameservers: What's the Difference?
Understand the difference between DNS and nameservers. DNS is the system, nameservers are the servers within it. Simple explanation with real-world examples.
What is WHOIS? Domain Lookup Explained
Learn what WHOIS is, how domain lookups work, what information they reveal, and how GDPR and RDAP have changed domain privacy.
How to Read HTTP Headers
Learn how to read and understand HTTP headers. Covers security headers, caching, performance, and red flags to watch for.
How to Check SSL Certificates
Learn how to check SSL certificates for any website. See what each field means, spot common issues, and verify your certificate is working properly.
What is Quad9 DNS (9.9.9.9)?
Learn what Quad9 DNS is, how 9.9.9.9 protects you from malware and phishing, and how to set it up on any device.
DNS Security Best Practices
Learn the most important DNS security practices — DNSSEC, encrypted DNS, secure resolvers, email authentication, and monitoring.
What is a Wildcard DNS Record?
Learn what a wildcard DNS record is, how it works, when to use it, and the risks to avoid.
A Record vs CNAME: What's the Difference?
Learn the difference between DNS A records and CNAME records, when to use each, and common mistakes to avoid.
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