DNS Records Builder & Zone File Generator
Processed in your browser
Generate standardized RFC 1035 DNS zone file records (A, AAAA, CNAME, MX, TXT, SPF, DKIM, DMARC, SRV, CAA) with syntax validation.
Domain Parameters
RFC 1035 Zone Records
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Direct In-Browser Handoff
DNS Diagnostics & SPF/DKIM Suite
Chain this tool with complementary private browser utilities for a complete zero-server workflow:
Helpful Examples
Apex Web Domain
domain: example.com, IP: 93.184.216.34
example.comHow to Use the DNS Records Builder & Zone File Generator
Client-side DNS zone file record generator. Build compliant DNS records for domain names, email authentication (SPF, DKIM, DMARC), certificate authorities (CAA), and service discovery (SRV) formatted ready for BIND, Route 53, Cloudflare, and hosting control panels.
Privacy & Data Processing Notice
No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.
Frequently Asked Questions
What is an RFC 1035 DNS Zone File?
RFC 1035 defines the text format used by BIND and DNS servers to store resource records. Each entry defines a domain name, TTL, class (IN), record type, and record data.
Why are CAA records important?
CAA (Certification Authority Authorization) records allow domain owners to declare which certificate authorities are permitted to issue SSL/TLS certificates for their domain, preventing fraudulent issuances.
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