DNS Lookup
Check DNS records for any domain. Lookup A, AAAA, CNAME, MX, NS, TXT, and SOA records with response timing. Uses DNS-over-HTTPS — fast, accurate, and private.
What Is DNS Lookup?
A DNS lookup queries the Domain Name System to find records associated with a domain name. DNS is the internet's address book — it translates human-readable domains (like google.com) into IP addresses (like 142.250.80.46) that computers use to connect. Different record types serve different purposes:
DNS Record Types Explained
- A Record — Maps a domain to an IPv4 address (e.g., 192.168.1.1)
- AAAA Record — Maps a domain to an IPv6 address
- CNAME Record — Aliases one domain to another (e.g., www → example.com)
- MX Record — Specifies mail servers and priority for email delivery
- NS Record — Lists authoritative nameservers for the domain
- TXT Record — Contains verification, SPF, DKIM, and other text data
- SOA Record — Start of Authority — primary nameserver, admin email, serial number
How This Tool Works
This tool uses DNS-over-HTTPS (DoH) to query Cloudflare's DNS resolver (1.1.1.1) and Google's DNS resolver (8.8.8.8). Your queries are encrypted in transit — no plain-text DNS requests are exposed. The tool measures response time for each query type so you can see how fast DNS resolves for any domain.
Common Use Cases
- Website troubleshooting — Check if DNS is propagated after changes
- Email configuration — Verify MX records point to the correct mail servers
- Domain verification — Check TXT records for SPF, DKIM, and domain ownership
- Performance analysis — Compare DNS resolution times
- Security audit — Identify unexpected CNAME chains or suspicious records
Getting the Most from This Tool
Start by exploring the default settings to understand what the tool offers, then customize the inputs to match your specific needs. Use the results as a starting point for deeper analysis or decision-making. Bookmark this page for quick access in the future. All processing happens in your browser, so your data stays private and the tool works even without an internet connection after the initial page load.
Frequently Asked Questions
What is a DNS lookup?
A DNS lookup queries the Domain Name System to find records (IP addresses, mail servers, nameservers, etc.) associated with a domain name. It is like looking up a phone number in a directory.
Is this DNS lookup tool private?
Yes. Queries are sent via DNS-over-HTTPS (encrypted) to Cloudflare or Google DNS resolvers. We do not log or store any queries.
What do the different DNS record types mean?
A records point to IPv4 addresses, AAAA to IPv6, CNAME creates an alias, MX routes email, NS identifies nameservers, TXT holds verification/SPF data, and SOA has zone authority info.
Why is my DNS query slow?
DNS speed depends on your internet connection, the DNS resolver distance, and domain complexity (CNAME chains, multiple records). Under 100ms is fast, 100-300ms is normal, over 300ms may indicate issues.
Can I check DNS propagation with this tool?
This tool queries Cloudflare and Google DNS. If your records show correctly here but not in your browser, your local DNS cache may be stale. Try flushing your DNS cache or waiting for the TTL to expire.
What is TTL in DNS?
TTL (Time To Live) is how long a DNS record is cached before being re-queried. A TTL of 3600 means the record is cached for 1 hour. Lower TTLs mean faster propagation but more DNS queries.
Why do I see different results than other DNS tools?
Different DNS tools query different resolvers. This tool uses Cloudflare (1.1.1.1) with Google (8.8.8.8) as fallback. Other tools may use different resolvers or query authoritative nameservers directly.