Author – Kilana Chohan, Simla Budhu & Team 

Protecting South Africa’s digital namespace

DNS abuse is a growing global challenge, and South Africa is no exception.

Malicious actors exploit the Domain Name System (DNS) to conduct phishing attacks, distribute malware, control botnets, and run large-scale spam campaigns.

This can lead to the impersonation of lawful organisations, the redirection of users to malicious websites, the theft of sensitive information, or the distribution of harmful software.

These activities threaten online trust, disrupt businesses and expose Internet users to fraud.

Protecting South Africa’s commercial domain spaces – CO.ZA, ORG.ZA, NET.ZA, and WEB.ZA – is therefore a critical priority led by the ZA Registry Consortium (ZARC), the registry operator responsible for managing these popular second-level domains.

Effective mitigation of DNS abuse requires coordinated action between registry operators, registrars, and the broader internet security community.

Together, these stakeholders play complementary roles in identifying threats, responding to incidents and maintaining a trusted digital environment.

To understand how this works in practice, it helps to look at the role ZARC plays in safeguarding the .ZA namespace.

ZARC’s role in protecting the .ZA second-level domains

ZARC is responsible for managing the technical infrastructure, developing and enforcing registry policies, and the operational framework that underpin these domains. One of its key priorities is managing status codes that can restrict or suspend abusive domain name activities.

Custodianship and Policy Governance

ZARC acts as the legal and technical custodian of these critical digital resources.

Through its Complaints, Domain Name Abuse & TakeDown Charter, and other policies,the organisation ensures that domain usage aligns with South African legislation, regulatory requirements, and international best practices.

These policies enable ZARC to investigate abuse reports and enforce corrective action when domains are used for malicious purposes.

Advanced threat detection and monitoring

Protecting these namespaces requires proactive monitoring and rapid detection of suspicious activity.

ZARC uses a combination of internal and external threat intelligence feeds to analyse domain activity and identify patterns linked to phishing, malware hosting, botnet command infrastructure, or other forms of DNS abuse.

ZARC and its registrars use dedicated abuse email contacts to report suspicious domain name registrations.

For ZARC, the key email abuse contact is: abuse@registry.net.za.

ZARC also receives domain name abuse from other industry partners, such as law enforcement, ISPA and members of the public, which also contribute to early detection and mitigation.

ZARC promotes WHOIS data accuracy and compliance, working with registrars to ensure domain registration information remains reliable and accountable across the ecosystem.

The value of these interventions cannot be overstated as they enable ZARC to quickly identify, investigate, and coordinate mitigation of malicious domains with its registrars, thereby strengthening trust in the local SLDs.

Rapid incident response and investigation

When abuse is reported, ZARC applies a structured triage and response process in accordance with its Complaints, Domain Name Abuse & TakeDown Charter, which is available here.

Domain name abuse cases are assessed and investigated in collaboration with accredited registrars, who typically serve as the first point of contact for domain holders.

ZARC shares a dynamic real-time list of abuse cases with its registrars and, through this collaborative approach, we see our registrars applying measures such as “clienthold” status and domain deletion actions to mitigate and limit the impact of abusive domain name activities.

Where a domain presents immediate harm to users, ZARC can implement technical mitigation measures – including DNS suspension at the registry level – to quickly disable the abusive domain.

ZARC also collaborates with cybersecurity agencies, internet governance bodies, and law enforcement, where appropriate, to contain detected domain name abuse practices, whilst simultaneously adhering to due process and registry policies.

Advanced protection through registry lock, resilient DNS infrastructure and ISO security standards

Apart from the policies and processes mentioned above, ZARC protects the integrity of the ZA SLDs through a combination of advanced technical and internationally recognised standards.

The golden standard registry lock provides an additional layer of protection by preventing unauthorised changes to the .ZA SLDs provided you have opted in for this value-added service with your registrar.

This feature ensures that high-value or sensitive domains cannot be transferred, deleted, or modified without a strict verification being conducted.

At the core of registry operations, ZARC’s domain name system is supported by resilient, secure infrastructure that ensures that domains resolve quickly and reliably, whilst built-in safeguards help detect and mitigate threats such as phishing or malware.

Complementing this, ZARC adheres strictly to ISO /IEC 27001 (Information Security Management) standards thereby demonstrating a commitment to protecting data, managing risk, and maintaining robust security controls across its operations.

Together, these measures ensure that the .ZA SLDs remain stable, secure and trusted by businesses and other end users.

A collaborative approach to guard against abusive domain name practices

The SLD domain name ecosystem has multiple players that contribute to the integrity and health of the namespace.

Protecting the .ZA namespace is therefore an ongoing effort requiring shared responsibility between the registry and its registrars, transparency, and continuous innovation.

Through proactive monitoring, strong governance frameworks, and close cooperation with accredited registrars, ZARC works to ensure that South Africa’s domain name ecosystem remains secure, stable, and trusted.

Working with partners: 1-grid

One of ZARC’s key accredited registrar partners is 1-grid, a premium web hosting, domain registration, and digital solutions provider.

“As a registrar, we implement a range of preventative measures to reduce DNS abuse and protect our customers from harmful online activity,” said 1-grid.

“These include strong account security through two-factor authentication, identity verification when engaging with customers, and proactive fraud screening to detect suspicious registrations or behaviour.”

1-grid explained that fighting DNS abuse is a shared responsibility – one that it combats in close collaboration with registries like ZARC, and by operating within ICANN frameworks.

In doing so, 1-grid operates within a secure and well-governed domain space that ultimately builds trust, enabling businesses and individuals to operate online with confidence.

Working with partners: Absolute Hosting

Absolute Hosting CEO Jade Benson built on this, explaining how they collaborate with ZARC and unpacking the role of registrars in preventing DNS abuse.

“Absolute Hosting collaborates closely with the Registry Operators Abuse team (ZARC), ZADNA’s Abuse Team, and relevant law enforcement agencies to effectively detect and respond to DNS abuse,” said Benson.

“This includes proactively reporting abusive domains, promptly suspending domains and associated services linked to verified abuse complaints, and maintaining ongoing cooperation with other registrar providers to address threats in a coordinated manner.”

He also explained that as a registrar, Absolute Hosting plays an important role in educating customers about online threats.

“By raising awareness and providing guidance on best practices, registrars help clients better protect their brands and online presence.”

“In addition, by offering cost-effective domain registration and renewal services, Absolute Hosting enables clients to secure multiple variations of their domain names. This proactive approach reduces the likelihood of abuse and helps mitigate potential fraud.”

Working with partners: Domains.co.za

Domains.co.za CEO Wayne Diamond explained why collaboration between the registry and registrars is essential to maintaining trust in the .ZA namespace.

“Effective cooperation ensures that security issues, DNS abuse, and operational challenges are addressed quickly and consistently, helping to preserve the reputation and stability of South Africa’s domain space,” said Diamond.

“For businesses and individuals registering a .ZA domain, the most important message is simple: your domain name is a critical digital asset, and it needs to be protected just like your website, email, or online brand.”

Working with partners: HostAfrica

HostAfrica’s Head of Systems Administration Sean Mulder said that DNS abuse management is a core operational responsibility for HostAfrica, not an afterthought.

“We’ve built a purpose-designed AI monitoring system to detect fraudulent domain registrations, complemented by custom phishing detection focused on protecting our own brand and customers, with confirmed threats automatically reported to AbuseIPDB,” said Mulder.

“Our dedicated abuse department acts promptly on every report received, and we’ve recently rolled out outbound spam detection across all shared hosting – part of an ongoing commitment to crack down harder on spam leaving our network.”