DNS Propagation Checker

Check how your DNS records have propagated across multiple global DNS servers. Verify DNS changes after updating nameservers or DNS records.

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Check Your DNS Records

Enter your domain name and select a record type to check propagation across global DNS servers.

Quick select:AAAAAMXTXTNS
Check DNS PropagationEnter a domain name to check DNS propagation across multiple global DNS servers.

Understanding DNS Record Types

Common DNS record types and their purposes

A & AAAA Records

A records map domain names to IPv4 addresses. AAAA records do the same for IPv6 addresses. These are the most fundamental DNS records.Example: example.com → 192.0.2.1 (A record)

CNAME Records

Canonical Name records create aliases pointing one domain to another. Useful for subdomains and CDN configurations.Example: www.example.com → example.com

MX & TXT Records

MX records specify mail servers for the domain. TXT records store text information, often used for SPF, DKIM, and domain verification.Example: MX → mail.example.com (priority 10)

Common Use Cases

Verify Nameserver Changes

After switching DNS providers or updating nameservers, check that the changes have propagated globally before updating your live site.

Domain Migration

When migrating a domain to a new host, verify that A and CNAME records have updated worldwide to prevent downtime.

Email Configuration

Check propagation of MX, SPF, and DKIM records when setting up or changing email servers to ensure reliable email delivery.

Troubleshooting DNS Issues

Identify inconsistent DNS responses across different servers to diagnose and resolve DNS propagation problems.

Frequently Asked Questions

Common questions about DNS propagation

What is DNS propagation?

DNS propagation is the time it takes for DNS changes to update across all DNS servers worldwide. This can take anywhere from a few minutes to 48 hours depending on TTL settings and DNS server caching.

How long does DNS propagation take?

DNS propagation typically takes 1-48 hours, but most changes propagate within a few hours. The TTL (Time To Live) value of your DNS records determines how long servers cache the old values.

What are the different DNS record types?

Common DNS record types include: A (IPv4 address), AAAA (IPv6 address), CNAME (canonical name/alias), MX (mail exchange), TXT (text records), NS (nameserver), and SOA (start of authority).

Why is my DNS not propagating?

DNS propagation delays can be caused by high TTL values, DNS server caching, incorrect nameserver configuration, or DNS hosting provider delays. Use a DNS propagation checker to monitor the spread of your changes.