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Domains and DNS

A complete guide to domain registration, DNS records, nameserver strategy, and propagation troubleshooting.

Record Setup

Use precise DNS records to prevent downtime and mail delivery failures.

Recommended workflow

  1. Add A or AAAA records for primary web host endpoints.
  2. Use CNAME for aliases (for example, www to root target).
  3. Create MX records for email routing and TXT records for verification.
  4. Apply SPF, DKIM, and DMARC policies for mail trust and anti-spoofing.

Notes and best practices

  • Keep a documented record map so future changes are auditable.

Transfer and Nameservers

Domain transfer quality depends on lock status, auth code readiness, and accurate nameserver planning.

Recommended workflow

  1. Unlock domain and request transfer/EPP code from current registrar.
  2. Initiate transfer and confirm verification emails promptly.
  3. Choose KairoHost LLC nameservers for centralized management or keep external DNS.
  4. After transfer completion, validate all production records.

DNS Issue Resolution

Most DNS incidents are propagation delay, record typo, or cache-related.

  • Check nameserver authority first, then inspect record values.
  • Clear local resolver and browser cache before retesting.
  • Use Premium DNS when you need stronger uptime and faster resolution.
  • For broader diagnostics, follow technical troubleshooting.

DNS General Information

Coverage for common and complex DNS questions clients ask during setup and troubleshooting.