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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 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.