DNS Lookup Tool
Look up the A, AAAA, MX, NS, TXT, CNAME, SOA and CAA records of any domain, with SPF and DMARC checks. Free and instant.
How to use the DNS Lookup Tool
- Enter your values in the fields above.
- The result updates automatically as you type.
- Copy or note the figures you need.
About this tool
Enter a domain name to see its public DNS records, including where it points, which servers handle its email and whether it publishes SPF and DMARC policies. Lookups use Cloudflare's public DNS-over-HTTPS service, so the domain name you enter is sent from your browser to Cloudflare to get the answer. Nothing is sent to ToolStack Hub.
DNS Lookup Tool is part of ToolStack Hub's Developer Tools. This tool makes the DNS query from your browser to Cloudflare’s public DNS-over-HTTPS service, so the domain name you enter is sent to Cloudflare. It is not sent to ToolStack Hub. There is nothing to install, no account to create and no usage limit.
Frequently asked questions
What is a DNS lookup?
It asks the Domain Name System what records exist for a domain, such as the IP address a website uses or the servers that receive its email.
Is the domain I enter sent anywhere?
Yes. The lookup is made from your browser to Cloudflare's public DNS-over-HTTPS service (cloudflare-dns.com). It does not pass through ToolStack Hub.
Why do my DNS changes not show yet?
Resolvers cache records for the TTL (time to live). After a change it can take from minutes to a day or more for every resolver to update.
Is the DNS Lookup Tool free?
Yes. DNS Lookup Tool is completely free with no sign-up, limits or watermarks.
Is my data private when I use the DNS Lookup Tool?
This tool makes the DNS query from your browser to Cloudflare’s public DNS-over-HTTPS service, so the domain name you enter is sent to Cloudflare. It is not sent to ToolStack Hub.
Does it work on mobile?
Yes. ToolStack Hub tools work on phones, tablets and desktop browsers.
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