CNAME Record Lookup

A
AAAA
CNAME
MX
NS
TXT
SOA
PTR
ANY
SRV
DS
LOC
CAA
Primary
Google
Cloudflare
OpenDNS
Quad9
Yandex
Comodo Secure DNS
DNS.Watch
OpenNIC
Verisign Public DNS
AdGuard DNS
Get DNS Information
Get DNS Information
Enter a domain name to retrieve DNS records
5.01 vote
0 Comments
About this tool

A CNAME (Canonical Name) Lookup Tool allows you to query and fetch the Canonical Name records for a specific domain. CNAME records are a type of DNS record used to alias one domain name to another. This is particularly useful for simplifying domain management, setting up subdomains, or redirecting traffic.

What Are CNAME Records?

CNAME records are entries in a domain's DNS settings that map an alias domain (or subdomain) to another canonical domain. Unlike A records that point to an IP address, CNAME records point one domain name to another.

Key components of a CNAME record:

  • Alias: The domain name that serves as the alias (e.g., www.example.com).
  • Canonical Name: The domain name to which the alias resolves (e.g., example.com).

For example, a CNAME record might look like this:

Here, www.example.com is an alias for example.com, meaning any requests to the former will resolve to the latter.

Why Are CNAME Records Important?

  • Domain Management: Simplifies managing multiple subdomains by pointing them to a single canonical domain.
  • Redirection: Allows seamless redirection of traffic without revealing the underlying server structure.
  • DNS Simplification: Helps in scenarios where domain names change but aliases remain the same.

How to Perform a CNAME Lookup?

To perform a CNAME lookup, you can use the command-line utility dig. Here's a basic command:

This command queries the default DNS resolver for the CNAME records of the subdomain www.example.com.

Using a Different DNS Server

To query a specific DNS server, use the following format. For example, querying Cloudflare's DNS server:

Here, @1.1.1.1 specifies Cloudflare's DNS server.

Advanced Dig Commands

  • View Detailed Output:
  • This command provides extra information about the domain's DNS setup.

  • Shortened Output:
  • Returns only the CNAME record without additional details.

Common Issues with CNAME Records

  • No CNAME Record Found: If no CNAME record exists for an alias, the domain will not redirect correctly.
  • Circular References: Misconfigured CNAME records that reference each other can create infinite loops.
  • Priority Conflicts: CNAME records cannot coexist with other DNS record types (e.g., A or MX) for the same domain.

How Our Tool Helps

Our CNAME Lookup Tool simplifies this process by providing a user-friendly interface to query CNAME records. Whether you're managing DNS configurations or troubleshooting subdomain issues, this tool helps you identify and resolve problems efficiently.

Last updated: