CYBERTOOLS / 0x26
[SYS_NODE: 0x26 // DNS RECORD SYNTHESIZER]

DNS RECORD SYNTHESIZER & FORMATTER

Construct and validate DNS resource records (A, AAAA, CNAME, MX, TXT/SPF/DMARC, CAA). Compile zone files formatted for standard BIND naming servers or one-click Cloudflare DNS import.

ADD RECORD NODE
[RFC 1035 COMPLIANT]
ACTIVE ZONE RECORDS (0)
[IN-MEMORY CACHE]
TYPE NAME VALUE / CONTENT PRIORITY TTL ACTION
BIND ZONE SYNTAX (RFC 1035)

      
CLOUDFLARE DNS IMPORT SYNTAX

      

DOMAIN NAME SYSTEM (DNS) RECORD SYNTAX & DEPLOYMENT ARCHITECTURE

Technical specifications for BIND 9 zone master files, Cloudflare DNS imports, mail authentication standards, and airgap zero-log privacy.

1. Standard Resource Record Format (RFC 1035)

DNS zone records follow the canonical format: <name> <ttl> IN <type> <rdata>.

  • A / AAAA Records: Map hostnames directly to 32-bit IPv4 addresses or 128-bit IPv6 addresses.
  • CNAME (Canonical Name): Aliases one domain name to another canonical name. CNAME records cannot coexist with other records at the apex (@) under RFC 1912.
  • MX (Mail Exchange): Routes incoming SMTP traffic with an explicit numerical preference weight (lower integer = higher delivery priority).
  • TXT Records: Carries machine-readable arbitrary text, critically employed by Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication (DMARC).
  • CAA (Certificate Authority Authorization): Specifies which Certificate Authorities (e.g. Let's Encrypt, DigiCert) are cryptographically authorized to issue SSL/TLS certificates for the domain (RFC 6844).

2. BIND vs Cloudflare Import Formatting

BIND zone files require absolute domain names to terminate with a trailing dot (.); otherwise, the zone origin is automatically appended. Cloudflare DNS accepts standard BIND zone files via its web UI and API, automatically interpreting apex @ notations, TTL values, and multi-string SPF/DMARC quotation delimiters.

1. Air-Gapped Sandbox 100% in-browser JavaScript execution. No hostnames, IP addresses, or internal network topology records are transmitted to external servers.
2. Escape Sequence Integrity DMARC and SPF semicolons and quotation marks are sanitized according to RFC standards to prevent DNS injection.
3. Cross-Platform Output Generates files directly importable into Route53, Cloudflare, DigitalOcean, BIND 9, NSD, and PowerDNS.