🔍 DNS Lookup

What is DNS?

DNS (Domain Name System) is the internet's phone book. When you type google.com in your browser, DNS translates that human-readable name into a numeric IP address (like 142.250.80.46) that computers use to connect.

Try it yourself

Type google.com and select A to see Google's server IP addresses. Or try gmail.com with MX to see which mail servers handle Gmail.

Record types explained

• A — Address record. Maps a domain to an IPv4 address (e.g. 93.184.216.34).
• AAAA — Same as A but for IPv6 addresses (the newer, longer format).
• CNAME — Canonical Name. Points one domain to another (like an alias). Example: www.example.com → example.com.
• MX — Mail Exchange. Specifies which servers receive email for the domain.
• NS — Name Server. Lists the authoritative DNS servers responsible for the domain.
• TXT — Text record. Used for verification, email security (SPF/DKIM), and other metadata.
• SOA — Start of Authority. Contains admin info about the domain's DNS zone (refresh rates, expiry, etc.).

What is TTL?

TTL (Time To Live) is how long (in seconds) a DNS record is cached before being refreshed. A TTL of 300 means your browser/ISP remembers the answer for 5 minutes before asking again.