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