DNS Record Generator
Generate DNS zone file entries for A, MX, TXT, CNAME, and SRV record types.
@ 3600 IN A 1.2.3.4
About this tool
DNS records are the fundamental building blocks of the Domain Name System—they tell servers how to route traffic to your domain and handle email, security, and other services. A DNS Record Generator simplifies the process of creating zone file entries for different record types (A, MX, TXT, CNAME, and SRV), which would otherwise require manual formatting and careful attention to syntax. Whether you're setting up a new domain, migrating hosting, or configuring advanced networking, this tool eliminates the need to remember DNS syntax rules and reduces the risk of configuration errors.
Using this tool is straightforward: select the DNS record type you need (A for IPv4 addresses, MX for mail servers, TXT for text records like SPF or DKIM, CNAME for aliases, or SRV for service records), fill in the required fields such as hostname, value, and TTL (time-to-live), and the tool generates the properly formatted zone file entry. You can copy the output directly into your domain registrar's DNS panel or host's zone file. Common use cases include redirecting subdomains, setting up email delivery, configuring DKIM signatures for email authentication, creating service discovery entries, and pointing domains to different IP addresses.
DNS Record Generators are invaluable for domain administrators, system engineers, and developers who manage multiple domains or frequently adjust DNS configurations. Even small syntax errors in DNS records can break email delivery, block website access, or create security vulnerabilities, making a structured tool essential for reliability. Whether you're managing a single site or orchestrating complex multi-server infrastructure, this generator ensures your records follow the correct format and are ready for immediate deployment.
Frequently Asked Questions
Code Implementation
# Generate DNS zone file records programmatically
from dataclasses import dataclass
from typing import Optional
@dataclass
class DnsRecord:
name: str
record_type: str
value: str
ttl: int = 3600
priority: Optional[int] = None # For MX records
def to_zone_line(self) -> str:
if self.priority is not None:
return f"{self.name}\t{self.ttl}\tIN\t{self.record_type}\t{self.priority}\t{self.value}"
return f"{self.name}\t{self.ttl}\tIN\t{self.record_type}\t{self.value}"
records = [
DnsRecord("@", "A", "93.184.216.34"),
DnsRecord("www", "CNAME", "example.com."),
DnsRecord("@", "MX", "mail.example.com.", priority=10),
DnsRecord("@", "TXT", '"v=spf1 mx ~all"'),
DnsRecord("mail", "A", "93.184.216.35"),
]
print("$ORIGIN example.com.")
print("$TTL 3600")
for record in records:
print(record.to_zone_line())Comments & Feedback
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