DNS & Domains

DNS record monitoring, propagation, domain expiry, and infrastructure fundamentals.

DNS translates your domain name into an IP address. Domain registration keeps your name yours. Both can fail silently — a changed DNS record or a lapsed domain can take your site offline with no server-side error to debug. These articles cover how DNS works, how to monitor it, and how to protect your domain.

For a comprehensive overview, see our Complete Website Maintenance & Monitoring Guide.

DNS Monitoring Explained: Detect Changes, Prevent Hijacking, Protect Your Site

Understand what DNS monitoring is, which record types to watch, how DNS propagation works, and how to detect unauthorized changes before they cause outages.

DNS Propagation Explained: How Long It Takes and How to Check

Understand what DNS propagation is, why DNS changes take time to spread globally, how TTL affects propagation speed, and how to check propagation status.

DNS Record Types Explained: A, AAAA, CNAME, MX, TXT, NS, and More

A complete reference guide to DNS record types including A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV, and PTR records. Understand what each record does and when to use it.

Domain Expiry Monitoring Guide: Protect Your Domain from Lapsing

Learn why domains expire despite auto-renew, how WHOIS monitoring works, what happens during grace and redemption periods, and how to set up domain expiry alerts.