> ## Documentation Index
> Fetch the complete documentation index at: https://kmerhosting.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Manage nameservers and DNS

> Update nameservers and DNS records for standalone and hosting-included domains.

The console provides nameserver and DNS views for standalone and included domains.

<Frame caption="Nameservers determine which DNS provider is authoritative for the domain.">
  <img src="https://mintcdn.com/kmerhosting-a736a8a9/qmzUGdL1AajWuhXn/images/screenshots/domain-nameservers.png?fit=max&auto=format&n=qmzUGdL1AajWuhXn&q=85&s=0c932863642b62241a525cfebe67d91c" alt="Nameservers determine which DNS provider is authoritative for the domain." width="1600" height="900" data-path="images/screenshots/domain-nameservers.png" />
</Frame>

## Nameserver changes

Use the exact hostnames provided by the target DNS or hosting provider. A nameserver change can affect every record under the domain.

## DNS record editor

<Frame caption="The current editor supports A, AAAA, CNAME, MX, TXT, NS, SRV, and CAA records.">
  <img src="https://mintcdn.com/kmerhosting-a736a8a9/qmzUGdL1AajWuhXn/images/screenshots/domain-dns-records.png?fit=max&auto=format&n=qmzUGdL1AajWuhXn&q=85&s=f4e829b396ed0609da29d902e59995ac" alt="The current editor supports A, AAAA, CNAME, MX, TXT, NS, SRV, and CAA records." width="1600" height="900" data-path="images/screenshots/domain-dns-records.png" />
</Frame>

| Type  | Common use                               |
| ----- | ---------------------------------------- |
| A     | Hostname to IPv4 address                 |
| AAAA  | Hostname to IPv6 address                 |
| CNAME | Alias to another hostname                |
| MX    | Mail server routing                      |
| TXT   | Verification, SPF, and policy data       |
| NS    | Delegation for a zone or subdomain       |
| SRV   | Service discovery with port and priority |
| CAA   | Certificate-authority authorization      |

## Safe change process

1. Export or record the current values.
2. Change one logical service at a time.
3. Use realistic TTL values.
4. Verify the authoritative nameservers.
5. Test website, email, and verification records after propagation.

<Warning>
  Deleting or replacing MX, SPF, DKIM, or DMARC records can interrupt email delivery even when the website continues to work.
</Warning>