How Cloud DNS Supports Website Migrations

Posted on by Harper

Cloud DNS helps website migrations by giving administrators precise control over where domain traffic is directed before, during, and after infrastructure changes.

A website migration may involve moving to a new hosting provider, cloud platform, server, CDN, or data center. The files and databases often receive most of the attention, but DNS frequently determines whether visitors actually reach the new environment successfully.

How does DNS affect a website migration?

DNS records connect the domain name with the infrastructure serving the website.

For example, changing an A record can direct a domain to a new IPv4 address, while an AAAA record handles IPv6. A CNAME record may instead point a hostname toward another service, such as a CDN or hosted platform.

The objective is simple: make the transition predictable while reducing disruption.

What should you do before changing DNS?

One useful migration practice is to review TTL values before the move.

If a record has a long TTL, recursive DNS resolvers may continue using its previous value until the cached response expires. Reducing the TTL ahead of a planned migration can therefore help changes become visible more quickly.

Do not wait until the migration begins. Existing cached records still follow the TTL that was active when they were retrieved.

Use old and new infrastructure together

Where possible, keep the previous website online while traffic moves to the new environment. This creates a safety window if some resolvers or users still reach the previous address.

After updating DNS, verify:

  • A and AAAA responses
  • www and other important hostnames
  • TLS certificates
  • redirects
  • APIs and third-party integrations
  • email records that should remain unchanged

A provider such as ClouDNS can provide centralized DNS management during these changes, which is particularly useful when several records or services must be coordinated.

Do not change unrelated records

One common migration mistake is replacing an entire DNS zone when only the website records need modification. That can accidentally affect MX, SPF, DKIM, verification, or service records.

Change only what the migration requires.

Conclusion

Successful website migrations depend on more than copying data. Cloud DNS provides the control needed to redirect traffic carefully, verify the new environment, and reduce avoidable downtime.

DNS Attacks: How They Work and How to Protect Your Network

Posted on by Harper

DNS attacks pose a significant cybersecurity risk, exploiting vulnerabilities in the Domain Name System (DNS) to disrupt operations, steal sensitive information, or redirect users to malicious websites. As a critical component of internet functionality, a compromised DNS can lead to downtime, financial losses, and reputational damage.

Common Types of DNS Attacks

  • DDoS Attacks – Overwhelming DNS servers with traffic to cause service disruptions.
  • DNS Spoofing – Manipulating DNS responses to redirect users to fraudulent websites.
  • DNS Hijacking – Taking control of DNS settings to alter traffic flow.
  • Cache Poisoning – Injecting malicious DNS data to mislead users and compromise security.

Best Practices for DNS Security

  • Implement DNSSEC (Domain Name System Security Extensions) to authenticate DNS responses.
  • Use firewalls and threat detection tools to monitor and mitigate attacks.
  • Regularly update and patch DNS software to address vulnerabilities.
  • Deploy redundant DNS servers to ensure service continuity in case of an attack.

As DNS attacks continue to evolve, organizations must adopt proactive security measures to protect their infrastructure and maintain operational stability.

Learn more about the latest DNS security strategies against DNS attacks and how to safeguard your network.

DNS records – Briefly explained

Posted on by Harper

DNS records represent simple instructions for a precise domain name. They are kept in a DNS zone on the Authoritative DNS server responsible for the domain name. Their main goal is to deliver information regarding a domain name, for example, its corresponding IP address. DNS records can be of various different types, and each one of them has an exact purpose. Find out more about the different DNS record types!

Dig command – Definition

Posted on by Harper

The Dig command is a small, fast, and useful tool. So it is not a surprise that it can become your go-to DNS (Domain Name System) utility tool from now on. The acronym Dig stands for the entire name Domain Information Groper. With it, you can check all types of DNS records, view name servers, and perform a Reverse DNS lookup. Learn additional information about the Dig command!

Nslookup command explained

Posted on by Harper

It is amazing that a beneficial tool like the Nslookup command is available for usage on every popular operating system (OS), like Windows, Linux, and macOS. It is very easy to use thanks to its simple command-line interface (CLI). Nslookup command allows you to complete all different kinds of DNS lookups, plus Reverse DNS lookup. It is able to supply you with valuable information for your domain. For that reason, it is one of the most popular tools for DNS administrators. Read more details about the Nslookup command!