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CYBER SECURITY
DNS Record Generator
Build copy-ready DNS records for email authentication and common DNS services. Everything is generated locally in your browser.
Generated record
Choose a record type and enter the required details.
Using the generated record
- SPF is published as a TXT record at the domain itself. Keep one SPF record per domain and avoid exceeding SPF's DNS lookup limit.
- DMARC is published as a TXT record at
_dmarc.example.com. - DKIM is published as a TXT record at
selector._domainkey.example.com; your mail provider normally supplies the public key. - Always check your existing DNS before adding a record. The generator creates a record; it does not determine whether it conflicts with records already published.