DNS reference
DNS records connect a domain to websites, email and verification services. Change only the record and hostname requested by the provider, and preserve unrelated records.
Website recordsA, AAAA and CNAME direct hostnames.
Email recordsMX, TXT and CNAME commonly work together.
TTL controls cachingChanges take time to reach every resolver.
Core records
Safe changes
@ usually means the root domain; www is a separate hostname. A trailing dot may indicate a complete hostname. Do not delete existing MX, SPF, DKIM or verification records when adding an unrelated website record.
Use the exact target and priority supplied. Duplicate or conflicting records can prevent service activation.
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