# Connect a .RU or .SU domain to Cloudflare DNS

Canonical URL: https://xuid.ru/blog/ru-su-cloudflare-dns/

Language: en

Published: 2026-11-10. Category: Domains.

Prepare DNS records, update nameservers in xUID and check your website and email when connecting a .RU or .SU domain to Cloudflare.

You can keep your domain registration with xUID while using an external DNS provider. To connect it to Cloudflare, add the domain in Cloudflare and use the nameservers assigned to that zone in your xUID domain settings.

Start when the domain is active and Cloudflare has accepted the zone in your account. Adding a zone and changing nameservers are separate steps; finish the record checks before switching a working site.

## Keep a copy of the current records

Record the entries used by the website, email and any subdomains. Include verification records for services you want to keep. A screenshot can help you review the setup, but keep the actual record values somewhere you can copy accurately.

Follow [Cloudflare's full-setup instructions](https://developers.cloudflare.com/dns/zone-setups/full-setup/setup/) to add the domain and review the records in the new zone. Check the imported list against the old provider. A DNS scan is not a substitute for knowing which services you use.

Check proxy status too. Keep mail-server hostnames and service-verification records DNS-only. For a DNS-only move, keep website records DNS-only initially; enabling Cloudflare's proxy also needs the correct proxy and TLS configuration for your site.

If the domain already uses DNSSEC, follow Cloudflare's migration instructions before changing delegation. Coordinate the existing DNSSEC/DS arrangement with the current providers so the move doesn't leave validation pointing at the old setup.

## Update nameservers in xUID

In your xUID account, open the active domain and find **Connect your domain**. Enter the nameserver hostnames Cloudflare assigned to your zone, then choose **Save nameservers**.

Use the exact assigned pair, not nameservers copied from a tutorial or another domain. xUID requires distinct nameservers. The saved domain settings show the recorded nameservers; pending updates need time to complete.

xUID's .RU/.SU nameserver changes can take 24 hours, and caches can take longer. Repeatedly replacing a correct pair won't make the change finish sooner. Check the saved values and update status if the old delegation remains visible.

## Check the website and email separately

Once Cloudflare reports the zone active, visit the main website and the subdomains you use. Check HTTPS and application sign-in. Send a message to your domain from another provider and reply to it.

Cloudflare's [email-record instructions](https://developers.cloudflare.com/dns/manage-dns-records/how-to/email-records/) cover routing mail to your email provider. Changing DNS providers doesn't create a mailbox or move existing messages. Keep the old mail service until the intended replacement works.

For a new address, compare [email hosting and forwarding](https://xuid.ru/blog/domain-email-vs-forwarding/). If you are also changing the website host, use the broader [migration checklist](https://xuid.ru/blog/move-website-and-email/) to coordinate the two changes.

## Keep registration and renewal in view

Your .RU or .SU renewal remains with xUID even when Cloudflare manages DNS. Keep account access and renewal funding organized; a working DNS zone doesn't renew the domain for you.

If you are still choosing a name, [search .RU and .SU domains](https://xuid.ru/domains/). You can set your chosen provider's nameservers as part of the registration setup or update them once the domain is active.