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DNS Lookup Tool

Perform a DNS lookup for any domain. Check DNS records like A, AAAA, CNAME, MX, and NS.

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Perform a **a record lookup** for any domain. Check **mx record checker, dns propagation check** and more with our **free DNS checker tool**.

What is a DNS Lookup?

A DNS (Domain Name System) lookup is the process of querying the internet's "phonebook" to find the IP address associated with a domain name. When you type a website like "www.google.com" into your browser, your computer performs a **DNS lookup** to find its corresponding IP address (e.g., 172.217.14.228) so it knows where to send the request. Our **free DNS checker tool** lets you perform this lookup manually for any domain and check all its important records.

Understanding Different DNS Records

Our tool can check various types of DNS records, each serving a different purpose for domain health and configuration:

  • A Record: The most basic DNS record. It maps a domain name to an IPv4 address. This is essential for website accessibility.
  • AAAA Record: Similar to an A record, but it maps a domain to a more modern IPv6 address.
  • CNAME Record: A Canonical Name record forwards one domain to another. For example, `www.example.com` is often a CNAME pointing to `example.com`.
  • MX Record: A Mail Exchanger record directs a domain's email to the servers that host its email accounts. This record is crucial for email deliverability.
  • NS Record: A Name Server record indicates which DNS servers are authoritative for the domain, meaning they hold the actual DNS records.
  • TXT Record: Allows domain administrators to store text notes. Commonly used for email security verification (SPF, DKIM, DMARC) and domain ownership verification.
  • SOA Record: The Start of Authority record contains important administrative information about the domain, like the primary name server and an email address for the domain administrator.

Why Use a DNS Lookup Tool?

  • **Technical SEO:** SEO professionals use a **DNS checker** to diagnose technical issues, verify domain configurations, check for proper redirections, and analyze competitor setups.
  • **Troubleshooting:** If a website or email service is down, a **DNS lookup** can help you quickly determine if the problem is with its DNS configuration.
  • **Email Configuration:** When setting up a new email service (like Google Workspace or Microsoft 365), you must verify that your MX and TXT records are pointing correctly to ensure you can send and receive emails.

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