📚Dev Reference

DNS Record Types

Guide to A, CNAME, MX, and TXT records.

Explanation

DNS records map human-readable domain names to IP addresses and other services.

Examples

Web
Output
A record
Email
Output
MX record

Code Examples

Types 
A     - IPv4 Address
AAAA  - IPv6 Address
CNAME - Alias to another domain
MX    - Mail server
TXT   - Arbitrary text (SPF, verification)
NS    - Name servers

💡 Tips

  • Use CNAME for subdomains, A for apex domains (@)
  • TXT records are used for domain ownership verification
  • TTL (Time to Live) determines how long records are cached

⚠️ Common Pitfalls

  • Long TTLs make it slow to update records during migrations
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