Getting started with our global DNS checker is simple

What is DNS?

DNS (Domain Name System) is the internet’s phonebook. It translates human-readable domain names into machine-readable IP addresses, ensuring that users connect quickly and reliably to the websites and services they need.

How does DNS propagate?

DNS propagation is the process of spreading updated domain records across the internet. When you make a change, it starts at your domain’s primary DNS server, then gradually updates on servers worldwide until your new settings are fully live and accessible everywhere.

How do I do a DNS lookup?

Simply enter your domain name, choose the record type from the dropdown menu, and click “Look up.” You’ll instantly see whether your DNS records are resolving correctly.

What DNS record should I look up?

A

The IPv4 address (A) record maps your domain to a specific server by pointing it to an IP address. It tells browsers where your website is hosted, using the legacy IPv4 addressing system.

AAAA

The IPv6 address (AAAA) record links your domain to a modern, next-generation IP address. It directs browsers to the server hosting your website, using the IPv6 system built for scalability and future growth.

CNAME

The Canonical Name (CNAME) record creates an alias by pointing one domain to another. For example, if someone types example.com, the CNAME can redirect them seamlessly to www.example.com.

NS

The Nameserver (NS) record specifies which DNS servers are authoritative for your domain. It tells the internet where to look for the correct records so your website can be found and loaded properly.

MX

The Mail Exchange (MX) record routes emails for your domain to the correct mail server. It ensures that messages sent to addresses like user@yourdomain.com are delivered to the right inbox.

TXT

The Text (TXT) record lets you add notes or data to your domain in a readable format. It’s most often used for verifying domain ownership, improving email security, and adding details like company information.

SOA

The Start of Authority (SOA) record defines key details about a domain, including ownership, the primary nameserver, and the last time records were updated. It also sets the rules for how DNS zones are synchronized across servers.

PTR

The Pointer (PTR) record links an IP address back to a domain name. Also called a reverse DNS lookup, it confirms which domain is associated with a specific IP—commonly used for email validation and security.

SPF

The Sender Policy Framework (SPF) record specifies which mail servers are authorized to send email for your domain. It helps prevent spoofing and ensures your messages aren’t flagged as spam or phishing.

Why is DNS lookup important?

When you switch hosting providers or launch a new website, the first few days are crucial for DNS propagation. Until updates spread worldwide, your site may not load correctly. Global DNS is the backbone that keeps websites connected and accessible everywhere.

DNS checker FAQ

What does a DNS checker do?

Our free DNS checker lets you instantly see how far your domain has propagated and detect any issues with your DNS records.

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