DNS stands for Domain Name System, and it is a significant part of the internet, which makes it possible for internet users to match the names of the websites they are looking for to the numbers that represent the addresses of these websites.
As a matter of fact, every device connected to the internet, be it your cell phones, laptops, tablets or websites has an Internet Protocol (IP) address, which is made up of numbers. Take for instance, your favorite website might have an IP address such as 22. 2. 220. 200 which, for a person, is somehow difficult to remember from time to time. However, if your favorite website’s name, for example, is www.goodfoods.com, it is easier for you to remember that. So, when you are accessing your favorite website, DNS syncs up its domain name with its corresponding IP address to make the website visible to you.
In practice, while you remember your favorite website’s domain name, your computer or other devices mainly recognize its unique IP address.
How DNS works
Outlined below are the ways DNS works to provide internet users with satisfactory experiences:
Your query: Technically, you send a query to the internet when you type www.goodfoods.com into the browser, asking the internet to help you find the website. A query is considered to be a definite question which requests that the website’s domain name be matched with its designated IP address. Considering the Internet Architecture, your query will have to go through some servers before your requested website can pop up. The first server that will interact or engage with your query is called the recursive resolver, and this kind of server can be operated by your wireless carrier, Internet Service Provider (ISP), or a third-party provider. The recursive resolver will then go ahead querying other servers to find answer to your initial query, which is “what is the IP address of www.goodfoods.com?”
The Root Servers: The very first type of DNS server that recursive resolver gets in touch with is referred to as a Root Server. There are several Root Servers all over the world, and each of them has adequate DNS information about Top Level Domains like .com. In order to provide answer to your initial query, the recursive resolver requests that the Root Server provide the necessary information about .com. There are thousands of servers that support the root around the world, but DNS makes sure that your query is sent to the root server nearest to you.
Listed below are the 13 authorities that operate the known 13 DNS Root Zones’ Servers:
VeriSign, Inc. (198.41.0.4, 2001:503:ba3e::2:30)
University of Southern California (ISI)
Cogent Communications
University of Maryland
NASA (Ames Research Center)
Internet Systems Consortium, Inc.
US Department of Defense (NIC)
US Army (Research Lab)
Netnod
VeriSign, Inc (192.58.128.30.2001:503:c27::2:30)
RIPE NCC
ICANN
WIDE Project
The Top Level Domain Name Server: At this stage, each Top Level Domain (TLD) DNS name server stores the IP address information for second level domains (goodfoods.com) within the top level domain (.com). As your query gets to the Top Level Domain Server, the TLD server promptly answers with the IP address of the domain’s name server, which will then lead to the next phase of the process.
The Domain’s Name Server: Here, the recursive resolver forwards the query to the Domain’s Name Server. The DNS server recognizes the IP address for the full domain name, www.goodfoods.com and that answer is sent back to the recursive resolver.
Your Favorite Website Will Show Up: Now that the recursive resolver has discovered the IP address of the website in your query, it will inform the browser the website’s IP address. And then, your browser will send a request to the website to retrieve the website’s content using the IP address is has just learned from the recursive resolver. Although, these procedures appear to be lengthy; however, they can happen within a tenth of a second. It is so fast that the entire process can occur before a blink of an eye.
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WhoDat1.com offers free DNS propagation check service to check Domain Name System records against a selected list of DNS servers in multiple regions worldwide. DNS propagation inquiries are important so that visitors are able to find web services, mail services, and more. The <span style=\"color: rgb(230, 0, 0);\">RED X<\/span> means the query has NOT been resolved, the <span style=\"color: rgb(0, 138, 0);\">GREEN Check Mark<\/span> the query has been resolved.<\/p>","below_map":"<p><span style=\"color: rgb(55, 65, 81);\">Our free online DNS Propagation Checker tool allows you to verify DNS propagation worldwide. Easily check DNS data for any hostname or domain from DNS servers across the globe.<\/span><\/p><p><span style=\"color: rgb(55, 65, 81);\">Our DNS Propagation Checker tool simplifies global DNS checks by offering a comprehensive list of over 100 global DNS servers. You can customize the DNS server for certain tools and perform DNS checks using different servers.<\/span><\/p><p><span style=\"color: rgb(55, 65, 81);\">To enhance understanding, our tool collects, parses, and displays DNS propagation results on a map. A green tick indicates that the requested DNS record is available on the DNS server, while a cross indicates its unavailability. The green tick also signifies that the DNS record matches the expected value set by the user, whereas a cross indicates a mismatch. 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