Managing DNS records on UnderDNS
Add, edit and delete DNS records for domains on UnderDNS in CustomerPanel: A, AAAA, CNAME, MX, TXT (SPF, DKIM, DMARC), SRV, CAA and NS, with examples and TTL tips.
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Once a domain is on UnderDNS, all of its DNS records are managed from the domain's DNS Management page in CustomerPanel. Saved changes are live on every UnderDNS nameserver within seconds.
Open the records
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Log in to CustomerPanel
Go to customerpanel.ca and sign in.
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Open the domain
Domains → My Domains, then click the domain and choose DNS Management. The Records list shows every record in the zone.
Add a record
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Choose the type
In Add a record, pick the record type. The form shows an example value and a short explanation for the type you chose.
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Enter the host
Use
@(or leave it empty) for the domain itself,wwwfor www.example.com,mailfor mail.example.com and so on. The full name is shown under the field so you can check it. -
Enter the value and save
Fill in the value (and the priority for MX and SRV records), then click Add record.
Record types and examples
| Type | Example value | Use it for |
|---|---|---|
| A | 192.0.2.10 | Points the host to an IPv4 address (your server's IP) |
| AAAA | 2001:db8::10 | Points the host to an IPv6 address |
| CNAME | target.example.net | Makes the host an alias of another hostname. Not allowed on @ |
| MX | mail.example.com (priority 10) | Mail server for the domain. Lower priority numbers are tried first |
| TXT | v=spf1 include:_spf.example.com ~all | SPF, DKIM, DMARC and site verification codes |
| SRV | 5 5060 sip.example.com | Services such as SIP or chat. Host like _sip._tcp; value is weight, port, target; set the priority |
| CAA | 0 issue letsencrypt.org | Limits which certificate authorities may issue SSL for the domain |
| NS | ns1.example.net | Delegates a subdomain (not @) to other nameservers |
More background on each type: DNS record types explained.
Edit or delete a record
In the Records list, use the edit button on a record to change its value, TTL or priority, then Save record. The delete button removes it. Both take effect on the nameservers within seconds.
Deleting or changing MX, SPF, DKIM or DMARC records affects email straight away. Write down the old value before you change it.
When changes show up (TTL)
UnderDNS serves a saved change immediately, but resolvers (your ISP, Google, Cloudflare's 1.1.1.1...) may keep the old answer cached for up to the record's TTL (time to live), in seconds.
- Planning a move to a new server? Set the A record's TTL to 5 min a day before, change the IP, then set it back to 1 hour.
- For records that rarely change, 1 hour or longer is fine.
- Check what the world sees with the DNS Propagation Checker.
Common setups
| Goal | Records |
|---|---|
| Website on your server | A @ → server IP, and A www → server IP (or CNAME www → example.com) |
| Email on a hosting server | MX @ → mail.example.com (priority 10), A mail → server IP, TXT @ SPF, TXT DKIM from your mail server, TXT _dmarc |
| Site verification (Google, Microsoft...) | TXT @ with the code they give you |
| Only Let's Encrypt may issue SSL | CAA @ → 0 issue letsencrypt.org |
For SPF, DKIM and DMARC values, see SPF, DKIM and DMARC and test with the Email Deliverability Checker.
Related: What is UnderDNS? | How to move your domain's DNS to UnderDNS | DNS record types explained | What is DNS propagation?
Need a domain or DNS check?
Register domains through UnderHost or use our DNS tools to verify records, nameservers, and propagation.
