DNS Lookup
Check DNS records for any domain using Cloudflare DNS-over-HTTPS. Supports A, AAAA, MX, TXT, CNAME, NS, SOA, SRV and CAA record types.
DNS Record Types Reference
| Type | Purpose | Example Value |
|---|---|---|
| A | IPv4 address | 93.184.216.34 |
| AAAA | IPv6 address | 2606:2800:220:1:248:1893:25c8:1946 |
| CNAME | Canonical name alias | example.com. |
| MX | Mail exchange server | 10 mail.example.com. |
| TXT | Text record (SPF, DKIM, etc.) | "v=spf1 include:_spf.google.com ~all" |
| NS | Name server | ns1.example.com. |
| SOA | Start of authority | ns1.example.com. admin.example.com. 2024010101 3600 900 604800 300 |
| SRV | Service locator | 10 20 443 target.example.com. |
| CAA | CA authorization | 0 issue "letsencrypt.org" |
What is DNS Lookup?
DNS (Domain Name System) is the internet's address book, translating human-readable domain names like example.com into IP addresses and other machine-readable data. A DNS lookup tool lets you query this system directly to inspect the records associated with any domain, which is essential for diagnosing configuration issues, verifying deployments, and understanding how a domain is set up.
This tool queries DNS records via Cloudflare's DNS over HTTPS (DoH) service, supporting all major record types: A (IPv4 address), AAAA (IPv6 address), MX (mail server routing), TXT (text records used for SPF, DKIM, domain verification), CNAME (canonical name aliases), NS (nameserver delegation), SOA (zone authority), SRV (service location), and CAA (certificate authority authorisation).
DNS lookups are a daily necessity for developers, sysadmins, and DevOps engineers. Checking A records confirms that a domain points to the right server after a migration. Verifying MX records ensures email will route correctly after switching mail providers. Inspecting TXT records is the first step when troubleshooting email deliverability problems — SPF misconfigurations are one of the most common causes of email landing in spam. By using DoH, this tool bypasses your local resolver cache and queries Cloudflare's global network directly, giving you authoritative results without local interference.
How to Use DNS Lookup
- Enter a domain name
Type any domain name (e.g. example.com) into the input field. You do not need to include "https://" or "www".
- Select the record type
Choose the DNS record type you want to query: A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, or CAA.
- Run the lookup
Click Lookup and the tool queries Cloudflare's DoH resolver directly, bypassing your local DNS cache.
- Review the results
DNS records are displayed in a clear table with TTL values, record data, and any relevant metadata.
Key Benefits
Supports A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, and CAA records — everything you need for full DNS inspection.
Queries go directly to Cloudflare's DNS over HTTPS endpoint, bypassing your local resolver for accurate, uncached results.
Cloudflare's global network returns results in milliseconds, making even complex multi-record lookups near-instant.
No need to use command-line tools like nslookup or dig. Everything runs in your browser with a clean interface.
Frequently Asked Questions
DoH sends DNS queries over an encrypted HTTPS connection instead of plain UDP port 53. This prevents your queries from being intercepted or tampered with, and bypasses local resolver caching for more accurate results.
Your local DNS resolver may have cached older records. This tool queries Cloudflare directly, so it reflects the current published DNS state based on the record's TTL.
TXT records store arbitrary text data for a domain. Common uses include SPF (email sender policy), DKIM public keys, DMARC policy, Google/Microsoft domain verification tokens, and various third-party service verifications.
A CAA (Certification Authority Authorisation) record specifies which certificate authorities (CAs) are permitted to issue SSL/TLS certificates for a domain. It helps prevent unauthorised certificate issuance.