Your website files can be secure while the system directing visitors to your domain remains vulnerable. Learn how DNS security attacks happen, what DNSSEC does and how to protect your domain.

You have installed an SSL certificate. Your WordPress website is updated. Your passwords are strong, and you have taken steps to protect your website from hackers.

But there’s another part of your online presence that deserves your attention: the system that directs visitors to your website.

It’s called the Domain Name System, or DNS.

Think about what happens when a customer types your website address into a browser. The browser needs to find the server where your website is hosted. DNS helps make that connection by translating your domain name into the numerical address computers use to communicate.

Now imagine that someone interferes with those directions.

Your website files might remain untouched, but visitors could be directed to a fraudulent destination or prevented from reaching your website.

This is why website security should not stop at your website itself. Your domain and DNS infrastructure need protection too.

What is DNS and why does your website depend on it?

DNS stands for Domain Name System. It works like an internet address book.

People remember domain names such as example.com more easily than numerical IP addresses. DNS helps browsers find the correct server when someone enters a domain name.

Without DNS, accessing websites using familiar domain names would be much more difficult.

For a business, this system supports more than website access. Domain records can also direct email services and other online tools to the correct servers.

That means problems with DNS can affect several parts of your business, depending on how your domain is configured.

How can DNS attacks affect your website?

DNS attacks involve different methods of interfering with the way domain names are resolved or managed.

Here are some of the threats website owners should understand.

1. DNS hijacking

DNS hijacking happens when an attacker gains control of DNS settings or otherwise manipulates where a domain points.

For example, imagine a customer wants to visit your online store. They enter your correct domain name, but an attacker has changed the DNS records so that visitors are directed to a different server.

That destination could be a fraudulent website designed to collect login details or payment information.

Your original website files may still be intact. The problem is that the directions leading visitors to them have been changed.

2. Domain account compromise

Your domain registrar account is where important domain registration and management settings are controlled.

If someone gains unauthorised access to this account, they may be able to change domain settings, including nameservers, depending on the account’s permissions and security controls.

This is one reason you should never treat your domain account like an ordinary account that needs only a simple password.

Whoever controls your domain account may have significant control over where your website and related services point.

3. DNS cache poisoning

DNS cache poisoning involves placing false DNS information into a resolver’s cache.

A DNS resolver helps users find the IP address associated with a domain. If its cache contains manipulated information, users relying on that resolver could be directed to an incorrect destination.

This is different from changing the DNS records at your domain registrar. The attack targets the information used by a resolver rather than necessarily taking control of your domain account.

Nigeria’s DNS security gap deserves attention

DNS security is not just a concern for large international companies. It is becoming an important part of Nigeria’s digital infrastructure conversation.

In August 2026, the Nigeria Internet Registration Association (NiRA) reported that only 15 of the country’s 164 accredited domain registrars had implemented DNS Security Extensions, commonly known as DNSSEC.

That represented an adoption rate of approximately 9.15%.

The issue received further attention in November when the National Information Technology Development Agency (NITDA) announced plans to include DNSSEC implementation in cybersecurity assessments for government Ministries, Departments and Agencies. The agency also encouraged government websites operating under the .gov.ng domain to adopt the technology.

The message is worth paying attention to: having a registered domain is not the same as having a properly secured domain infrastructure.

For businesses that depend on their websites to receive enquiries, process orders, communicate with customers or build trust, domain security should be part of their wider security plan.

What is DNSSEC and how does it protect your domain?

DNSSEC means Domain Name System Security Extensions.

It adds digital signatures to DNS information so that supporting resolvers can check whether the responses they receive are authentic and have not been altered.

Here’s a simple way to understand it.

Imagine someone gives you an address and claims it is the correct location of a business. You have no way to confirm whether the address is genuine.

Now imagine that the address comes with a verifiable digital signature. You can check that the information has not been changed and that it comes from the expected source.

DNSSEC provides a similar verification mechanism for DNS data.

When a domain is correctly signed and the resolver validates the signatures, DNSSEC helps detect forged or altered DNS responses.

However, DNSSEC is not a complete website security solution.

It does not encrypt website traffic, prevent every type of DNS attack, stop DDoS attacks or protect a domain registrar account if someone steals its login credentials.

It is one layer of protection, not a replacement for proper domain management and wider cybersecurity practices.

7 ways to protect your domain and DNS infrastructure

You don’t need to be a cybersecurity specialist to start improving your domain security. These practical steps can help reduce avoidable risks.

1. Protect your domain registrar account

Use a strong, unique password for your domain registrar account. Avoid reusing passwords from email, social media or other services.

Where available, enable multi factor authentication. This adds another verification step when someone attempts to access your account.

2. Limit who can manage your domain

Not everyone who works on your website needs full access to your domain settings.

Give access only to trusted people who genuinely need it. Review existing users and remove access when someone no longer works on the project.

3. Enable domain transfer protection

Ask your registrar about domain transfer locks and other available safeguards against unauthorised domain transfers.

These controls can make it harder for someone to move your domain to another registrar without authorisation.

4. Review your DNS records

Know which DNS records your website and email services depend on.

Pay attention to changes involving nameservers, A records, MX records and other important entries. If you notice a change you did not authorise, contact your DNS provider or registrar immediately.

Don’t delete unfamiliar records without checking what they do. Some may support legitimate services connected to your domain.

5. Ask about DNSSEC support

Find out whether your domain registrar and DNS hosting provider support DNSSEC.

Ask who is responsible for signing your domain, maintaining the relevant records and ensuring that the DNS chain of trust is configured correctly.

DNSSEC requires proper implementation. An incorrect configuration can make a domain inaccessible to users whose resolvers validate its signatures.

6. Keep your domain registration active

An expired domain can create serious problems for your website, email and business identity.

Enable renewal reminders and, where appropriate, automatic renewal. Make sure your payment information is current and that renewal notices reach an email account you actively monitor.

7. Monitor your domain and hosting accounts

Pay attention to unexpected login notifications, password reset messages and changes to domain settings.

Keep your hosting account secure as well. Domain security and website security work together, but they protect different parts of your online presence.

Domain security and website security are not the same thing

It’s easy to assume that securing your website automatically protects everything connected to it.

But website security and domain security address different risks.

Website security focuses on protecting your website files, applications, databases and server environment.

Domain security focuses on protecting the registration, ownership and DNS settings that help people reach your website.

You need both.

An SSL certificate helps encrypt information exchanged between a visitor’s browser and your website. It does not prove that your domain registrar account is secure or that every DNS response is authentic.

Likewise, DNSSEC helps verify DNS information, but it does not protect your WordPress administrator password or prevent malware from infecting your website.

Each layer has a different job.