DNS Lookup Tool

You type names like naver.com, but machines need numeric IPs. DNS is the phone book of the internet — this tool looks up its live directory entries.

3-Line Summary

1Enter a domain (e.g., google.com) to query nameserver records.
2Query A, AAAA, MX, and other record types in a live results table.
3Debug DNS caching issues and domain migrations.

How DNS Translation Works

DNS maps domain names to IP addresses across a distributed database. Your browser asks your ISP's DNS resolver, which chains queries through root, TLD, and authoritative name servers until the final IP is returned.

Common DNS Record Types

- **A record:** Maps a domain to an IPv4 address. - **AAAA record:** Maps a domain to IPv6. - **CNAME:** Alias pointing one hostname to another domain. - **MX record:** Mail server destination for the domain. - **TXT record:** Text data for verification, SPF, DKIM, and similar uses.

DNS Propagation Delay (TTL)

After you change an A record, some users still see the old site because DNS servers cache answers for the TTL (Time To Live) — often one hour to one day. Global updates complete only after cached entries expire.

GOOGLE ADSENSE

Frequently Asked Questions (FAQ)

If your ISP DNS is slow or failing, Google DNS (8.8.8.8 / 8.8.4.4) or Cloudflare DNS (1.1.1.1) can resolve names faster and more reliably.

Attackers corrupt DNS cache or responses to redirect legitimate domains (e.g., bank.com) to phishing sites. Always verify HTTPS padlock and certificate validity in the browser.

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