DNS Records
DNS records tell the internet where your domain should send visitors.
When you connect a custom domain to Atomicat, you copy the record shown in Atomicat and add it at your domain provider. Atomicat then checks whether the record exists and points to the correct destination.
Common DNS terms​
| Term | Meaning |
|---|---|
| DNS | The system that routes domain names to the correct service. |
| Host or name | The part of the domain you are configuring, such as www, offer, or the root domain. |
| Value or target | The destination the record points to. |
| CNAME | A record that points one hostname to another hostname. |
| TXT | A text record often used for verification. |
| CAA | A record that can control which certificate authorities may issue SSL certificates. |
| Propagation | The time it takes for DNS changes to become visible across the internet. |
DNS records used by Atomicat​
Depending on your site setup and domain provider, Atomicat may ask you to add or verify:
- A CNAME record for the connected domain
- SSL validation records
- CAA-related records when certificate validation requires them
- TXT records for external verification workflows
- CNAME records for integrations such as pixel-related domains
Always copy the exact value shown in Atomicat.
How to add a DNS record​
- Open your domain provider or DNS manager.
- Find the DNS zone for the domain.
- Add the record shown in Atomicat.
- Enter the host/name exactly as needed.
- Enter the value/target exactly as shown.
- Save the record.
- Wait for DNS propagation.
- Return to Atomicat and click the verification/check option.
Example CNAME setup​
If you want to publish to:
offer.yourbrand.com
Your DNS provider may ask for:
| Field | Example |
|---|---|
| Type | CNAME |
| Name | offer |
| Value | The Atomicat destination shown in the DNS modal |
Some providers require the full host, such as offer.yourbrand.com. Others require only offer.
Root domain notes​
Root domains such as yourbrand.com may be handled differently by each DNS provider.
Some providers support alias, ANAME, flattened CNAME, or similar options. If your provider does not support the required root-domain behavior, using www.yourbrand.com or a campaign subdomain can be simpler.
DNS verification errors​
| Error type | What to check |
|---|---|
| Record not found | Confirm the record exists in the correct DNS zone. |
| Wrong target | Confirm the value matches exactly what Atomicat shows. |
| Wrong host | Confirm the name is www, offer, root, or the correct subdomain. |
| Conflict | Remove duplicate A, AAAA, or CNAME records for the same host when they conflict. |
| Not propagated | Wait and check again later. |
| CAA issue | Add or adjust the certificate authorization record shown by Atomicat. |
Best practices​
- Make one DNS change at a time when troubleshooting.
- Avoid editing records for your main website unless you are sure.
- Use a subdomain for campaigns if your root domain is already in use.
- Keep screenshots or notes of previous DNS settings before changing them.
- Verify DNS before requesting SSL or sending traffic.
Frequently asked questions​
Should I add the record in Atomicat or my domain provider?
You add DNS records at your domain provider. Atomicat shows the values and verifies them.
Why does DNS work for some people but not others?
DNS propagation can vary by location, resolver, and provider cache.
Can one host have multiple CNAME records?
Usually no. A hostname should not have multiple conflicting CNAME records.
What if I do not know where my DNS is managed?
Check where your domain nameservers point. Your DNS records are usually managed wherever the active nameservers are hosted.