DNS Lookup
Fast, accurate, and free online DNS Lookup tool that runs directly in your browser.
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1Enter data
Enter content, paste text or load a file from disk. -
2Click the button
The tool will immediately process your data in the browser. -
3Get the result
Copy the finished text or save the file to your device.
return "Result ready in 0.1s";
}
| Name | TTL | Type | Data |
|---|---|---|---|
| example.com | 300 | A | 172.66.147.243 |
| example.com | 300 | A | 104.20.23.154 |
Preview Raw JSON
[
{
"host": "example.com",
"class": "IN",
"ttl": 300,
"type": "A",
"ip": "172.66.147.243"
},
{
"host": "example.com",
"class": "IN",
"ttl": 300,
"type": "A",
"ip": "104.20.23.154"
}
]
DNS Lookup Report Domain: example.com Type: A ------------------------------------------------------------------------ NAME TTL TYPE DATA ------------------------------------------------------------------------ example.com 300 A 172.66.147.243 example.com 300 A 104.20.23.154 ------------------------------------------------------------------------ Records returned: 2
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Other tools you may find usefulDNS Lookup - Diagnose and check your online domain's web records
DNS Lookup is a professional and reliable web tool that allows you to instantly query global name servers and display all active DNS records for a selected Internet domain for diagnostic purposes.
What is the DNS system and why is it crucial to the operation of the Internet?
The Domain Name System (DNS) is often referred to as the Internet's phone book. Its main task is to translate human-friendly domain names (such as webp.pl) into numeric IP addresses (e.g. 192.0.2.1) that are understandable by computers, routers and network servers. Without DNS, using the web would require remembering complex strings of numbers for every website you visit. When you type a URL into your browser, your computer queries the DNS server to determine the correct IP address of the server that hosts the page. Our tool allows you to trace this process and check exactly what responses are returned by name servers for a given domain.
The most important types of DNS records and their key functions
The DNS zone of a domain consists of different types of records, each of which is responsible for a different aspect of directing network traffic. The A (Address) record maps the domain name to the IPv4 address of the web server. The AAAA record works identically but supports the newer IPv6 protocol. The CNAME (Canonical Name) record is used to create aliases, i.e. pointing one domain to another (e.g. www.domena.pl to domaina.pl). MX (Mail Exchanger) records identify the servers responsible for handling email in a given domain. NS (Name Server) records indicate which DNS servers hold the official domain configuration zone. In turn, TXT (Text) records allow you to attach any text, which is crucial when verifying domain ownership and configuring anti-spam systems.
Diagnostics of e-mail and security problems (SPF, DKIM, DMARC)
Incorrect configuration of DNS records is the most common reason for e-mail messages not being delivered and correspondence ending up in the spam folder. Using DNS lookups, administrators can quickly check the presence and validity of TXT records responsible for email security. The SPF (Sender Policy Framework) record defines which IP servers are authorized to send emails on behalf of a given domain. A DKIM (DomainKeys Identified Mail) key adds a digital signature to messages, and a DMARC policy determines how the recipient server should handle emails that fail SPF and DKIM tests. Analyzing these entries using our tool allows you to quickly detect errors and protect your domain against spoofing and phishing.
Understand DNS propagation and TTL (Time to Live) parameter
When making changes to DNS records (e.g. when migrating a website to another server), the modifications are not immediately visible on the network around the world. This is due to the caching mechanism, which prevents global DNS servers from being overloaded. Each record is assigned a TTL (Time to Live) parameter, expressed in seconds, specifying how long proxy servers can keep a given entry in the cache before querying the source server again. The typical propagation time of changes in the network ranges from a few minutes to even 24-48 hours. Using a DNS lookup, you can check whether the new records have already been propagated to the main network nodes and whether the servers are correctly directing traffic to the new IP address.
Frequently Asked Questions
What is DNS Lookup?
This is the process of querying name servers to retrieve domain configuration information, such as its IP addresses, mail servers, and ownership verification text entries.
What is the difference between an A record and a CNAME record?
An A record points a domain name directly to the server's numeric IP address (IPv4), while a CNAME record points one domain to another domain, acting as a network alias.
How do I check my domain's SPF and DKIM records?
Enter your domain in the DNS lookup and select the TXT record type. The tool will display all text records in which SPF rules, DKIM keys and DMARC policies are encoded.
Why does my website still point to the old server after changing hosting?
This is the result of DNS propagation. ISP servers cache old records for a period of time specified by the TTL parameter. Full global update may take up to 24-48 hours.
What does MX stand for in the context of DNS records?
An MX (Mail Exchanger) record is an entry that indicates the address of the mail server responsible for receiving e-mail messages sent to addresses in a given Internet domain.