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DNS and domains

What is a PTR record?

A PTR record maps an IP address back to a host name.

PTR records are managed by the owner of the IP address. They are particularly important for mail servers and reverse-DNS checks.

Which value should you enter?

Record typePTR
ValueHost name for reverse DNS
TTLUse the default value unless a provider specifies otherwise.

What should you consider?

  • You usually cannot change a PTR record in the regular DNS zone.
  • Configure the PTR record with the VPS or IP provider.
  • Make sure the host name also resolves forward to the same IP address.
DNS changes take time

After saving, an old value may temporarily remain in cache. Therefore, check not only in your browser but also with an external DNS checker.

Frequently asked questions

When will a PTR change become visible?

This depends on the TTL and provider caches. The change is often visible within a few minutes, but old responses may be retained for longer.

Can I undo a DNS change?

Yes. Restore the previous value and save again. This correction may also temporarily be affected by DNS cache.

Do I need to change the TTL?

Usually not. For a planned migration, you can lower the TTL in advance so later changes are retrieved more quickly.

Still need help?

Email support@mosthosted.com and include your domain name, the required record and the value.

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