# DNS Record types ## How does a browser know where website lives? When you type a website name like **www.example.com** in browser and enter, the page open in just seconds. but wait : How does a browser know where website lives? Where is it ? Who tells the browser the address ? **There is no one but DNS.** ## DNS : The phonebook of internet DNS (Domain Name System) is like contact list in your phone. You save a name but behind the name, there is a number. similarly, We know name like **google.com but** computer only understand numerical values .so it required **IP Address** like 142.43.53.32. **DNS connect that name to IP address.** ## Why DNS records are needed One domain has to solve many problems. when you enter domain like **google.com** it face so many questions like : * Where is the website ? * Where should emails be delivered ? * Who manage this domain ? * Is this domain real and trusted ? That's why DNS records are **needed.** DNS records **break** one big problem into small clear solution . Think about a house. A house does not have just one piece of information. It has : address i.e. where it is ? Post office route i.e. where letter go? An owner i.e. who manage it? Extra notes i.e. security and verification DNS records do same thing . Each record answer **one specific Question.** but wait…. Here, a question arises what happens if we don't have DNS records? For it think , you telling someone to go to your friend's house but you don't give him your friend's address or tell him where to send letters and also not tell him that who manage the house. It is obvious that your friend will be confused. Similarly with the internet, **browsers don't know** where websites are located. **Emails** don't know where to go. **Fake domains** would be hard to detect. So, **DNS records prevent this confusion.** ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1769152839821/06484b01-dea4-4813-98f8-4f0bd7ba47a6.png align="center") ## Types of records: 1. **A Record** 2. **AAAA Record** 3. **CNAME Record** 4. **MX Record** 5. **NS Record** 6. **TXT Record** ### A record : Imagine I want to visit my friend Anushka. Now, I need her home address , **not just her name.** That exactly what an record an **A record does.** It connect the domain name to an **IPv4 address.** Ex. [`example.com`](http://example.com) `→ 93.184.216.34` It solve the question i.e. “where is this website located ?” Here you might Think, what happens if we don't have an A record? * The Browser knows the name * But has **no address to go.** As a result, the website will not open. ### AAAA Record: **Most important ,** it have same job like A record. It is just a **modern version** of A record. The difference is only that, Its IP address is **IPv6.** And also, It solve the problem like “how do we support the new network addressing system ?” But wait: Is that means , will we have to choose one from it ? **Frankly speaking, NO.** We do not have to worry about choosing one from them. Many websites use both **A and AAAA .** ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1769153995995/f3381b51-a9fe-4df9-99a6-262e62b70708.png align="center") ### CNAME record : It's like calling our best friend by their name or nickname. For example, my best friend's name is Anushka, but I call her names like Anushka or Anu. both name are pointing towards **same person.** That is **CNAME record.** Ex…[`www.example.com`](http://www.example.com) `→` [`example.com`](http://example.com) Also there is a confusion between A and CNAME record i.e. * A record points to an **IP address** * CNAME points to **another domain name** We can't use them together for the exact same name. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1769154013655/6a50b851-4f03-4f34-87e7-519fc14c32ed.png align="center") ### MX Record: Your Home address is not where **letters are sorted**. Letters first go to a **post office**. **That is MX record.** * It tells where emails should be delivered. Ex…[`example.com`](http://example.com) `→ Google mail servers` It tells ,” if someone send mail to info@example.com , where should it go”. Wait, but here some people get confused: * **MX is not for website** * It is only for **Email delivery** ### TXT Record : Sometimes, services ask :”are you really owner of this domain?” Instead of documents, DNS uses **TXT records.** They are used to : * domain verification * Email security * Trust and protection usually we are not reading TXT records. Machine do. ### **NS record** Simply, it define **who control DNS for the domain** But what if we not use NS record? when someone type your website name in browser, DNS needs to know **which DNS server to ask for the correct IP address** That direction is given by **NS record** Ex.., `Example.com NS ns2.dnsprovider.com` **Working:** 1. We type example.com in browser. 2. DNS root server says: “ask these name servers “(from NS record) 3. Browser contact to ns1.dnsprovider.com 4. That server returns A record, AAAA record, MX record etc. So it means NS record is **the place where all records are live.** ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1769154897578/d3a0b3b5-d3fe-4252-8bd1-abae44eb6571.png align="center") But wait, here some people got confuse: * NS decide **who control DNS** * MX decides **where email goes** ## How one domain Uses All records Together? NS record * solves : Who is responsible for managing DNS ? A / AAAA record * Solves: Where is the website hosted? CNAME record * Solves: How can multiple names point to the same website? MX record * Solves: Where should emails be delivered? TXT record * Solves: How do we verify and secure the domain? ## Conclusion In the blog, we understand DNS and DNS record types. If DNS ever feels confusing ,remember that: we are not learning technology . We learning Addresses, names, and responsibilities. DNS records don’t exist to make things complicated. They exist to make sure everything goes to the right place. *I hope that you’ve found this blog helpful...! If you have any questions or feedback, feel free to leave a comment below.* *If you found this article helpful, please like and share it .*