# DNS Record Types Explained ?

## 🌐 DNS Record Types Explained

**DNS (Domain Name System)** is the system that **translates website names into IP addresses** so computers can find each other on the internet.

👉 Humans use names like [**google.com**](http://google.com)  
👉 Computers use numbers like **142.250.190.14**

### A Record (Address Record)

* **Purpose:** Maps a domain name to an **IPv4 address**
    
* **Example:**  
    [`example.com`](http://example.com) `→ 93.184.216.34`
    
* **Use case:** Basic website hosting
    

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### AAAA Record (IPv6 Address)

* **Purpose:** Maps a domain to an **IPv6 address**
    
* **Example:**  
    [`example.com`](http://example.com) `→ 2606:2800:220:1:248:1893:25c8:1946`
    
* **Use case:** Modern networks using IPv6
    

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### CNAME Record (Canonical Name)

* **Purpose:** Points one domain name to **another domain**
    
* **Example:**  
    [`www.example.com`](http://www.example.com) `→` [`example.com`](http://example.com)
    
* **Use case:** Aliases and subdomains
    

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### MX Record (Mail Exchange)

* **Purpose:** Routes **emails** for a domain
    
* **Example:**  
    [`example.com`](http://example.com) `→` [`mail.google.com`](http://mail.google.com)
    
* **Use case:** Email delivery
    

### TXT Record (Text Record)

* **Purpose:** Stores **text-based information**
    
* **Common uses:**
    
    * Domain verification
        
    * SPF / DKIM / DMARC (email security)
        
* **Example:**  
    `"v=spf1 include:_`[`spf.google.com`](http://spf.google.com) `~all"`
    

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### NS Record (Name Server)

* **Purpose:** Specifies which servers manage DNS for the domain
    
* **Example:**  
    [`ns1.hostingprovider.com`](http://ns1.hostingprovider.com)
    
* **Use case:** DNS delegation
    

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### 🔧SRV Record (Service Record)

* **Purpose:** Defines **services and ports**
    
* **Example:**  
    `_sip._`[`tcp.example.com`](http://tcp.example.com)
    
* **Use case:** VoIP, chat, and service discovery
    
    ### PTR Record (Pointer Record)
    
    * **Purpose:** Reverse DNS (IP → Domain)
        
    * **Example:**  
        `93.184.216.34 →` [`example.com`](http://example.com)
        
    * **Use case:** Email validation & security