Posted in: DNS

Cloud DNS for Companies Moving Services Online

Written by Calvin Leave a Comment on Cloud DNS for Companies Moving Services Online

Cloud DNS is a critical part of the infrastructure for companies moving websites, applications, customer portals, and internal services online. It determines how quickly and reliably users can find those services, making DNS planning an important part of any cloud migration.

Why does Cloud DNS matter during a migration?

When a business moves services from on-premises infrastructure to the cloud, DNS records often need to change. Web servers may receive new IP addresses, applications may move between providers, and new subdomains may be introduced for APIs, authentication, or customer services.

A poorly planned DNS migration can lead to downtime even when the new infrastructure itself works correctly.

Before migration, teams should:

  • Review existing DNS records and remove outdated entries.
  • Reduce TTL values before planned DNS changes.
  • Document dependencies between domains, applications, email, and third-party services.
  • Prepare rollback records in case the new environment fails.
  • Verify DNSSEC, CAA, MX, SPF, DKIM, and other relevant records after migration.

How can businesses reduce migration risk?

A practical approach is to separate the infrastructure migration from the DNS cutover. Deploy and test the new service first, then update DNS only when the destination has been verified.

For example, an e-commerce company moving its store to new cloud infrastructure can lower TTL values ahead of the migration. Once testing is complete, traffic can be redirected through a DNS update without waiting hours for older records to expire.

Reliable DNS infrastructure is equally important. Providers such as ClouDNS offer globally distributed DNS services and management options that can help organizations avoid making authoritative DNS itself a single point of failure.

What should companies prioritize?

Cloud migration teams should treat DNS as infrastructure, not as a final configuration task. Resilient authoritative servers, monitoring, sensible TTL policies, access controls, DNSSEC, and documented recovery procedures should be established before critical services are moved.

Cloud DNS helps companies move services online safely by providing the control, resilience, and flexibility needed to redirect users as infrastructure changes.

Posted in: Email

Email Deliverability & eCommerce Domain Reputation

Written by Calvin Leave a Comment on Email Deliverability & eCommerce Domain Reputation

Email deliverability depends on your domain reputation. Spam trigger words, sudden email spikes, and poor authentication can cause ISPs to block your emails. Recover by improving email hygiene, tracking engagement metrics, and using proper authentication methods like SPF and DMARC. A structured warm-up strategy can prevent future issues. Optimizing email volume and content personalization also boosts reputation. An easy domain reputation recovery plan!

Posted in: DNS

What is DNS propagation?

Written by Calvin 2 Comments on What is DNS propagation?

DNS propagation refers to the amount of time that is required for updating the latest DNS data (DNS records) completely through the entire network of servers on the web. When you make modifications and adjustments to your DNS records, they are not immediate. The reason for that is because the various nameservers keep the DNS data (DNS records) inside their cache memory for a particular amount of time before they refresh. So while your domain won’t experience any downtime from appropriately planned DNS record modifications, some of the users could still be served a cached version of your website. That will continue until the DNS propagation is completed. Learn more additional information about DNS propagation!

Posted in: DNS, rDNS

What does rDNS mean?

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Reverse DNS, which is also commonly known as rDNS, is used to show which is the domain name corresponding to an IP address (IPv4 or IPv6). It is actually exactly the opposite process of the usual Forward DNS, where the purpose is to find the matching IP address for a domain name.  

For achieving its goals and completing the process, rDNS requires using PTR records. rDNS is typically implemented to identify and validate that the IP address actually belongs to the specific domain name. That way, it is easier to avoid scams and spam emails. Read more about rDNS!

Posted in: DNS, DNS records

MX record – What is it?

Written by Calvin Leave a Comment on MX record – What is it?

The MX record is a DNS record where MX stands for mail exchange. It serves for directing and pointing to a mail server. The MX record provides information about how the email messages should be routed. In addition, it indicates which is the accountable server for receiving emails for a particular domain name.

The mail exchange record includes the hostname of the server that handles the emails for a domain and a prioritization code. With it, you could set different priority numbers. That way, you are able to separate the load among more than one server and provide redundancy. Find out more details about the MX record!

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