Knowledge Base

What Is DNS? A, AAAA, CNAME, MX and TXT Records

DNS records control how websites, email and verification services resolve. Each record type has a different purpose, and incorrect records can disrupt services.

A and AAAA

When working with a and aaaa, first identify the active registrar, authoritative DNS provider and hosting/server environment. Record the existing configuration before making changes, avoid deleting records used by live web or email services, and verify DNS resolution and the application separately after the change.

CNAME

When working with cname, first identify the active registrar, authoritative DNS provider and hosting/server environment. Record the existing configuration before making changes, avoid deleting records used by live web or email services, and verify DNS resolution and the application separately after the change.

MX

When working with mx, first identify the active registrar, authoritative DNS provider and hosting/server environment. Record the existing configuration before making changes, avoid deleting records used by live web or email services, and verify DNS resolution and the application separately after the change.

TXT, SPF, DKIM and DMARC

When working with txt, spf, dkim and dmarc, first identify the active registrar, authoritative DNS provider and hosting/server environment. Record the existing configuration before making changes, avoid deleting records used by live web or email services, and verify DNS resolution and the application separately after the change.

TTL and Caching

When working with ttl and caching, first identify the active registrar, authoritative DNS provider and hosting/server environment. Record the existing configuration before making changes, avoid deleting records used by live web or email services, and verify DNS resolution and the application separately after the change.

Frequently Asked Questions

If a domain or DNS change is not visible immediately, check TTL and resolver caching. Transfer, renewal and lifecycle rules can vary by TLD, registry and registrar, so verify the provider's current policy before a critical operation.

Conclusion

Successful domain management requires registration data, DNS and hosting to remain consistent. When managing domains with İde Bilişim, document the current configuration before changes and verify web and email services afterward.