DNS Lookup Tool

What is DNS?

DNS (Domain Name System) is a decentralized system that translates human-readable domain names (e.g., example.com) into IP addresses (e.g., 192.168.1.1) that computers use to identify each other on networks, including the internet.

Why Do We Need DNS?

• Simplifies Access: Users don't have to remember complex numerical IP addresses.
• Efficient and Scalable: It distributes domain resolution tasks across a global network of servers.
• Supports Website Redirection: Allows websites to change IP addresses without affecting users.
• Enhances Security: Helps manage domain-based security features like SSL certificates and email authentication.

Common DNS Record Types

• A (Address) Record: Maps a domain name to an IPv4 address (e.g., example.com → 192.168.1.1).
• AAAA Record: Maps a domain name to an IPv6 address.
• CNAME (Canonical Name) Record: Creates an alias for a domain (e.g., www.example.com → example.com).
• MX (Mail Exchange) Record: Defines the mail servers responsible for email delivery.
• TXT (Text) Record: Stores text information, often used for security purposes (e.g., SPF, DKIM, DMARC).
• NS (Name Server) Record: Specifies the authoritative name servers for a domain.
• SOA (Start of Authority) Record: Provides administrative details about the domain, including primary DNS server and serial number for updates.