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.