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DNS Lookup.

Look up live DNS records for any domain. Query A, AAAA, MX, CNAME, TXT, NS, and SOA records instantly using Cloudflare's secure DNS-over-HTTPS API — no software needed.

Query DNS Records

DNS Query Results
Name Type TTL Data
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About DNS Lookup

DNS Lookup is a high-performance web utility built to look up live DNS records for any domain. Query A, AAAA, MX, CNAME, TXT, NS, and SOA records instantly using Cloudflare instantly and securely. Because it is designed with a local-first architecture, all processing occurs directly in your browser's memory using client-side JavaScript. This ensures that your files, code, or private text inputs are never uploaded to any external server or tracked by third-party analytics.

Whether you are formatting source code, cleaning text files, converting file structures, or running diagnostics, running these processes locally in your browser memory sandbox eliminates network latency and protects your data privacy.

Frequently Asked Questions (FAQs)

What is TTL in DNS records?

TTL (Time to Live) is a value in seconds that tells DNS resolvers how long they may cache a record before asking the authoritative name server again. A lower TTL (e.g., 300 seconds) means changes propagate faster but increase DNS query load. A higher TTL (e.g., 86400 seconds / 24 hours) reduces query load but slows propagation of record changes.

What is the difference between an A record and a CNAME record?

An A record maps a domain name directly to an IPv4 IP address (e.g., example.com → 93.184.216.34). A CNAME (Canonical Name) record maps one domain name to another domain name, creating an alias. For example, www.example.com might CNAME to example.com. You cannot use a CNAME record on the root domain (apex domain); only A or AAAA records work there.

Why do DNS records take time to propagate worldwide?

DNS propagation delay occurs because thousands of DNS servers around the world cache records independently for the duration of their TTL. When you update a record, old cached values persist until they expire. Propagation typically takes between a few minutes and 48 hours depending on the previous TTL value of the record.

What does an MX record do?

An MX (Mail Exchange) record specifies the mail server responsible for accepting email on behalf of a domain. MX records include a priority number — the lower the number, the higher the priority. When sending email to user@example.com, the sending server looks up the MX records for example.com to find where to deliver the message.

Is this DNS lookup tool using my personal data?

No. DNS queries through this tool are made directly from your browser to Cloudflare's public DNS-over-HTTPS (DoH) API at cloudflare-dns.com. No query data is logged or stored by Online Text Tools. The queries travel directly from your browser to Cloudflare's resolver, bypassing our servers entirely.

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