FREE TOOL
DNS lookup
All of a domain's DNS records in one place, plus a quick health check of its email records.
This tool sends a request to our checking server. Addresses and files are processed on the spot and never stored.
WHAT IT DOES
About this tool
Look up a domain's A, AAAA, CNAME, MX, NS, TXT, CAA and SOA records. The tool also checks SPF, DMARC and DKIM, which affect email deliverability.
The check runs on our server: we send only the address or file you entered and show the result right away. Nothing is stored.
QUESTIONS
Frequently asked questions
What are SPF, DKIM and DMARC?
Three DNS records that protect your email. SPF lists the servers allowed to send mail for your domain, DKIM adds a signature to every message, and DMARC tells receiving servers what to do with mail that fails those checks. Without them, your mail lands in spam more often and is easier to fake.
Where do I find my DKIM selector?
Your email provider shows it on its DKIM setup page. Common ones: google (Google Workspace), selector1 and selector2 (Microsoft 365), k1 (Mailchimp) and default. You can also find it in the DKIM-Signature header of an email you've sent, after s=.
I changed a record. Why do I still see the old one?
DNS answers are cached for the TTL shown next to each record, in seconds. Wait until the TTL runs out. This tool asks Cloudflare and Google DNS directly, so it usually shows changes sooner than your own computer.
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