ToolPatch

One page. One job. Done.

← Back to all tools
Developer & Network Network diagnostics

DNS Record Builder

Generate valid DNS zone record lines for common record types.

Developer & Network

DNS Record Builder drafts correctly formatted zone records for A, AAAA, CNAME, MX, TXT, and related DNS entries. DNS maps human-readable names to values such as IP addresses, mail exchangers, verification strings, and aliases. An A record points a name to an IPv4 address, AAAA points to IPv6, CNAME aliases one hostname to another, MX declares mail servers with priorities, and TXT stores arbitrary text used for verification, SPF, DKIM, and other policies. TTL controls how long resolvers may cache a record before checking again. This tool helps reduce syntax mistakes before copying records into a DNS provider, but production changes should still respect provider rules, zone ownership, and propagation timing.

Permalink

Input guidance

Enter the hostname, address, certificate, header, or record requested by this form, then confirm important findings with the authoritative provider or system.

How to use this tool

  1. Choose a record type and fill in name, value, and TTL fields.
  2. Generate the record line and review formatting.
  3. Paste into your DNS zone and verify with a follow-up lookup.

DNS Record Inputs

Output

Zone record:

app.example.com. 3600 IN A 203.0.113.10

Use for IPv4 host mapping.

Formula or method

How to interpret the result

Review note and limitations

Related tools and workflows

Related developer and network tools help check nearby records, addresses, payloads, protocols, or diagnostics in the same troubleshooting flow. Start with DNS Lookup, DNS Propagation Checker, and HTTP Headers Checker when you need a quick follow-up check.