Understanding DNS Propagation: What It Is and Why It Matters

What Is DNS Propagation?

DNS propagation is the time it takes for DNS changes (e.g., nameservers, A records, MX records) to update across all servers worldwide.

When Does It Happen?

Any time you change DNS records, such as:

• Updating nameservers
• Changing A or CNAME records
• Modifying MX records (email)
• Adding/editing TXT records

How Long Does It Take?

• Usually 2–8 hours
• Can take up to 24–48 hours in rare cases

Different servers cache DNS differently, so some people see changes faster than others.

Key Things to Know

• No downtime — old and new settings work side-by-side during propagation.
• Check status — use tools like whatsmydns.net or dnschecker.org.
• Your device might cache old info — try:
  • Incognito/private window
  • Different browser
  • Mobile data instead of Wi-Fi

Why It Matters

Common when switching hosts, updating IP addresses, changing email providers, or adding subdomains.

Be patient! most changes are done within hours. If it’s been over 48 hours and something’s still wrong, contact support.