Online DNS lookup for a specified domain or hostname

DNS Lookup Online Tool | DNS Online Checker

A DNS lookup, in a general sense, is the process by which a DNS record is returned from a DNS server. This is like looking up a phone number in a phone book - that is why it is referred to as a "lookup".

The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or other resources connected to the Internet or a private network. The Domain Name System delegates the responsibility of assigning domain names and mapping those names to Internet resources by designating authoritative name servers for each domain. Network administrators may delegate authority over sub-domains of their allocated name space to other name servers. This mechanism provides distributed and fault-tolerant service and was designed to avoid a single large central database.

The most common types of records stored in the DNS database are for Start of Authority (SOA), IP addresses (A and AAAA), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS lookups (PTR), and domain name aliases (CNAME).

What is DNS?

DNS stands for Domain Name System, which is a hierarchical and decentralized naming system for computers, services, or any resource connected to the internet or a private network.

In simple terms, DNS is like a phonebook for the internet that translates human-readable domain names (such as google.com) into machine-readable IP addresses (such as 216.58.194.174) that computers use to identify each other and communicate over the internet.

DNS plays a crucial role in enabling internet users to access websites and other online services without having to remember the IP addresses of each resource they want to access.

What is DNS Lookup and Steps of DNS Lookup Process?

DNS Lookup is the process of querying a DNS server to obtain information about a domain name or IP address. When a user types a domain name in a web browser, the browser sends a DNS query to the DNS server, asking for the IP address associated with that domain name.

The DNS server receives the query and searches its database for the corresponding IP address. If the DNS server has the information in its cache, it returns the IP address to the user's browser. If it doesn't have the information, it sends a request to other DNS servers up the hierarchy until it finds the information or reaches the root DNS server.

The DNS Lookup process involves different types of DNS records, such as A records (to obtain IP addresses), MX records (to obtain mail server information), and CNAME records (to obtain aliases or canonical names). The response from the DNS server typically includes the requested information, along with a time-to-live (TTL) value that indicates how long the response can be cached before the DNS server needs to perform another lookup.

DNS Lookup is an essential part of internet communication, as it enables users to access websites and online services by their domain names, rather than having to remember and enter the corresponding IP addresses.

The DNS lookup process involves several steps:

1. Your computer sends a request to your configured DNS server, which may be provided by your Internet Service Provider (ISP) or set manually.
2. If the DNS server has the IP address for the requested domain name in its cache, it returns the IP address to your computer.
3. If the DNS server does not have the IP address in its cache, it sends a request to the root DNS server, which provides information about the top-level domain (such as .com, .org, etc.).
4. The root DNS server refers the request to the appropriate Top-Level Domain (TLD) DNS server based on the domain extension (such as .com or .org).
5. The TLD DNS server then refers the request to the authoritative DNS server for the specific domain name.
6. The authoritative DNS server returns the IP address for the requested domain name to the DNS server that initiated the request.
7. Finally, the DNS server returns the IP address to your computer, allowing your browser to establish a connection to the website.

This entire process usually takes only a fraction of a second and happens behind the scenes without any input from the user.

Different Types of Records Stored in the DNS Database

DNS databases store various types of records (also called resource records) that provide information about a particular domain name or resource. Some common types of DNS records are:

1. A (Address) Record: This type of record maps a domain name to its corresponding IPv4 address.
2. AAAA (IPv6 Address) Record: This type of record maps a domain name to its corresponding IPv6 address.
3. MX (Mail Exchange) Record: This type of record specifies the mail server responsible for accepting incoming email messages on behalf of a domain.
4. CNAME (Canonical Name) Record: This type of record creates an alias for a domain name, allowing multiple domain names to map to the same IP address.
5. NS (Name Server) Record: This type of record specifies the authoritative DNS server for a particular domain.
6. PTR (Pointer) Record: This type of record maps an IP address to its corresponding domain name, which is useful for reverse DNS lookup.
7. SOA (Start of Authority) Record: This type of record contains information about the domain's primary DNS server and other administrative information.
8. TXT (Text) Record: This type of record allows domain owners to store arbitrary text information about a domain.
9. SRV (Service) Record: This record specifies the location of a specific service provided by a domain name, such as a SIP server for voice over IP (VoIP) communication.

These are some of the most common types of DNS records, but there are others as well. Each record type provides specific information about a domain name and helps ensure that the DNS system can properly route requests to the correct servers.

How to use the DNS Lookup Checker tool?

1. Browse or open DNS Lookup Checker tool - https://www.onlinewebtoolkit.com/dns-lookup
2. Type or Paste Your URL without http:// or https:// . For Example: onlinewebtoolkit.com
3. Click on the "DNS Lookup" button.
4. You will get your details DNS lookup information

Useful Features of Our Online DNS Lookup Checker

Free and Simple to Use

The use of this tool comes at no cost, and it's effortless to use. With the simple set of instructions provided, you'll be able to view and run codes easily.

Compatibility

This tool is a cloud-based utility and supported by all operating systems, including iOS, Android, Windows, and Mac OS, allowing you to access and use it for viewing HTML files from any device.

No Plugin Installation Needed

You can access this tool through the web browser of your device without having to install any plugins. This HTML viewer operates without the need for any plugins, making it convenient to use.

Speedy and Secure

The tool displays results on the user's screen in mere seconds, and it's a secure online utility that doesn't save any data entered or uploaded by users in its databases.

Accessible from Everywhere

You can access our tool from anywhere in the world as long as you have an internet connection. Simply connect your device to the internet, and you'll be able to use and access this code viewer.

Privacy of Users’ Data

At OnlineWebToolKit, we offer a variety of online tools, including an DNS Lookup Checker Tool, and we take the privacy of our users' data very seriously. With so many online scams, many people are concerned about their sensitive information being compromised when using online tools. However, our website provides a secure and safe tool that prevents hackers from accessing or intentionally sharing users' information with third parties. The text you input into our tool is only stored temporarily on the client side within your browser until the formatting process is complete. Once the results are displayed or you refresh or close the browser, your data is deleted from our site.