Add your DNS records

Three records go at your DNS provider. Rubikc shows the exact values for each, with a copy button — use those rather than typing them, particularly for the TXT value.

All three are permanent

None of these are temporary setup records. Leave all three in place for as long as you use the domain. Removing the third one later will break your certificate when it comes to renew, months after everything looked fine.

1. Hostname CNAME

Points your domain at Rubikc.

Field	Value
Type	CNAME
Name / Host	Your domain, e.g. www.yourstore.com
Target / Value	saas.rubikc.net

This is the one that makes your domain reach Rubikc at all. On its own it gets you a site that loads over HTTP and fails on HTTPS.

2. Domain ownership TXT

Proves the domain is yours.

Field	Value
Type	TXT
Name / Host	Shown in Rubikc — copy it
Value / Content	Shown in Rubikc — copy it

The value is a long random string. Copy it; do not retype it.

If Rubikc says these details are not available yet, choose Check on the Domain screen to fetch them.

3. Certificate validation CNAME

Lets your certificate be issued and, more importantly, renewed automatically without you doing anything again.

Field	Value
Type	CNAME
Name / Host	Shown in Rubikc — copy it
Target / Value	Shown in Rubikc — copy it

Remove any existing TXT at the same name first

This CNAME usually goes at _acme-challenge. A TXT record and a CNAME record cannot both exist at the same name.

If you have previously set up a certificate for this domain with another provider, there is very likely an old TXT record sitting at _acme-challenge. Delete it before adding this CNAME, or this record will never validate and nothing will tell you why.

This is the record people delete once their site is working, because it looks like leftover setup. It is not. It is how renewal happens.

A note on your DNS provider

Providers differ in how they want the Name / Host field:

• Some want the full name, www.yourstore.com.
• Some want only the part before your domain, www, and add the rest.

If a record does not validate and the value is definitely right, this is usually why. Check how your provider’s other records are written and match them.

Tip

If your DNS is behind a proxy — Cloudflare’s orange cloud, for instance — set these records to DNS only. A proxied record does not resolve to what Rubikc needs to see.

Next

Verify and go liveChecking each record, and switching your storefront over.