Domain Security

Keep your domains safe from attack

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Your domains are a valuable asset. Protect them from third-party access and threats with our advanced security add-ons, Domain Guard and DNS Pro.

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Domain Security

How to get Domain Guard or DNS Pro

Add extra security to all your IONOS domains.


If you don't have a domain, search for the one you want in the search bar above.


Add Domain Guard when prompted during checkout. You can add DNS Pro in your IONOS account once you've purchased a domain.


Activate the Domain Guard or DNS Pro security features on all domains in the contract with one click in your IONOS account.


Already got domains with IONOS? Log in and add DNS Pro or Domain Guard any time.

Protect your domains with extra security features

Choose Domain Guard or DNS Pro for greater peace of mind.

Domain Guard

Take control of your domain and its DNS traffic.

  • Secure access rights with two-factor authentication
  • Verify DNS traffic with DNSSEC encryption
  • Get proof of domain ownership

Applies to all new and existing domains within a contract.

£1/1st year, then £15/year. Prices excl. VAT.

Protect your domains
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Domain Guard features in detail

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Protection from DNS hijacking

Hackers could redirect your domain to fraudulent or malicious websites, potentially allowing them to collect the credit card details of your users or to claim legal ownership of your domain. Domain Guard counters these attacks and protects your DNS records.

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Two-factor authentication

Any changes to your domain and its records must go through an additional verification step where a security link is sent to your email address. This adds an extra layer of security, ensuring that hackers and other third parties stand no chance of stealing your domain.

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Improved security with DNSSEC

Your DNS records store information on how your domain is connected to an IP address. Domain Guard protects your DNS records through DNSSEC, leaving hackers unable to manipulate these important details or reroute them to fake destinations.

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Authenticated proof of ownership

IONOS will provide you with a domain ownership document free of charge. You can use this document if you need to prove domain ownership to any third parties, or when dealing with various authorities, institutions or companies.


Improve load times, and prevent DNS failure and website downtime.

  • Reduce the risk of DNS hijacking, spoofing, and DDoS attacks
  • Premium Anycast DNS, Secondary DNS and DNSSEC included
  • Back up and restore DNS zones, define and use your own DNS templates

Applies to all existing and new domains within a contract. £1/month for the first year, then £2.50/month. Prices excl. VAT.

Protect your domains
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DNS Pro, explained

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Premium Anycast

Reduce your website's loading time, no matter where your visitors are located. Unlike standard name servers, Premium Anycast has server locations on all continents so your visitors always benefit from a fast name resolution.

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DNS Backup

Manage custom templates for groups of DNS records to configure DNS zones quickly and easily. Create backups of your entire DNS zone and restore it at any time, reducing costly downtime.

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Make your domain name system more secure with an added layer of authentication. DNSSEC prevents hackers from manipulating your DNS records and rerouting queries to rogue servers.

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Secondary DNS

The operator of an authoritative name server can use IONOS as a secondary DNS provider. This increases the availability and performance of name resolution.

Why buy a domain at IONOS

Each domain contract includes comprehensive features.

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For basic and reliable protection of your website visitors, one Wildcard SSL certificate is included per contract. Domain Guard or DNS Pro can be added as an optional extra.

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10,000 subdomains

Up to 10,000 subdomains to customise and structure your website, for example:

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A professional email address (for example: connected to your domain with 2 GB of mailbox space to start. Upgrade anytime for more storage.

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Domain lock

The domain transfer lock ensures your domain cannot be transferred by unauthorised third parties.

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Easy setup

One-click activation makes it easy to connect your domain with email, hosting or social media profiles.

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24/7 customer support

Our professional, knowledgeable support team is always available for help and advice, 24/7.

Domain protection and security – FAQ

Protecting your domain name is critical to maintaining a healthy online presence. One way of doing this is with private domain registration. This hides your personal contact data from the public, effectively masking your registration details with the name of your web hosting provider. It's only available with certain domains.

Having authenticated proof of your domain ownership and preventing third-party access to your personal domain data can also help protect your domain name.

IONOS offers a wide range of domain security and protection services. With IONOS domain security products like Domain Guard and DNS Pro, you can protect your domain from DDoS attacks, safeguard against DNS hijacking and spoofing via DNSSEC, ensure faster, reliable, and secure DNS resolution, and choose Premium Anycast or secondary DNS with DNS backup and restore. Customised DNS templates are also offered as a part of an optional add-on that will work with any domain.

As long as you don't cancel your domain, we will auto-renew your contract. This way, you don't have to worry about your domain expiring unexpectedly.

Private domain registration makes sure that your Whois information is not visible to third parties. Domain Guard, however, protects you against hackers trying to access and alter your DNS records.

Your personal consultant

At IONOS, you have a dedicated contact person for personalised advice, tips to boost your online success, and technical support. Reach them via phone, chat and email, all at no cost to you as an IONOS customer.

Award-winning support

We're always working to improve our customer support, and we're proud to have won several awards. These include Best Customer Engagement Initiative and Best Use of Customer Insight.

Need more info?
Live Chat

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