For many organisations, domain names are among the most critical digital assets they own. They underpin websites, email infrastructure, customer communications, online services and create brand trust.
Despite this, domain portfolios are often fragmented across multiple registrars, managed by different teams, or lacking clear governance and security controls. This can create significant operational and security risks – particularly as phishing, domain hijacking and DNS-based attacks continue to increase.
Conducting a regular domain portfolio health check is one of the simplest and most effective ways organisations can strengthen their security posture and improve operational resilience.
Below is a practical checklist that organisations can use internally to assess the health, security, and governance of their domain portfolio.
1. Are All Critical Domains Registrar and Registry Locked?
Registrar locks help prevent unauthorised transfers or modifications to domain names. Without this control, domains may be vulnerable to accidental changes or malicious transfer attempts.
Organisations should confirm:
Critical domains have registrar lock enabled
High-risk domains also utilise registry lock where available
Domain transfer and other access permissions are restricted to authorised personnel only
Domains associated with corporate websites, email services, customer portals and authentication systems should be prioritised.
2. Is Multi-Factor Authentication (MFA) Enabled at Registrar Level?
Registrar accounts are a high-value target for threat actors. Compromise of a registrar account can lead to:
Domain hijacking
DNS redirection
Website outages
Email interception
Brand impersonation attacks
Best practice includes:
Enabling MFA on all registrar accounts
Using authenticator apps where possible
Avoiding shared credentials
Reviewing user access regularly
Many domain-related incidents occur simply because registrar access controls were not sufficiently secured.
3. Are Nameservers Centrally Managed?
Large organisations often inherit legacy DNS configurations over time, resulting in domains being spread across multiple DNS providers or managed by different business units.
This can create:
Visibility gaps
Inconsistent security controls
Increased operational risk
Delayed incident response
A domain portfolio review should assess:
Where nameservers are hosted
Whether DNS management is centralised
Whether there are legacy or unused DNS providers still active
Whether DNS changes are appropriately documented and approved
Centralised DNS governance improves both security and operational efficiency.
4. Is DNSSEC Enabled Where Possible?
DNSSEC (Domain Name System Security Extensions) helps protect against DNS spoofing and cache poisoning attacks by validating DNS responses.
While not every domain or provider may currently support DNSSEC, organisations should
Identify which domains can support DNSSEC
Enable DNSSEC on critical domains where feasible
Ensure DNSSEC configurations are maintained correctly
Incorrect DNSSEC implementation can create availability issues, so ongoing monitoring is important.
5. Are Key Stakeholders and Ownership Details Documented?
One of the most common operational issues during domain incidents is unclear ownership.
Questions organisations should be able to answer immediately include:
Who owns each domain?
Which registrar manages it?
Who has access to the registrar account?
Who approves DNS changes?
Who manages renewals?
Who should be contacted during an incident?
A lack of documented ownership can significantly delay incident response and recovery efforts.
Maintaining an up-to-date domain inventory with clearly assigned responsibilities is critical.
6. Is There a Recovery Process for Compromised Domains?
Many organisations have incident response plans for cyber events but overlook domain-specific recovery procedures.
A recovery process should include:
Registrar escalation contacts
Internal response stakeholders
DNS rollback procedures
Communication plans
Evidence preservation processes
Steps for phishing or impersonation takedowns
Testing these processes before an incident occurs can significantly reduce downtime and reputational impact.
7. Are SSL Certificates Being Monitored?
Expired or misconfigured SSL certificates can:
Cause website outages
Trigger browser security warnings
Disrupt customer trust
Impact online services
Organisations should:
Monitor certificate expiry dates
Ensure automated renewals are functioning correctly
Maintain visibility across all public-facing certificates
Identify unauthorised or rogue certificates
Certificate visibility is particularly important in large or decentralised environments.
8. Are Domain Renewals Centrally Tracked?
Missed renewals remain one of the most preventable causes of domain outages.
Organisations should ensure:
Renewal dates are centrally tracked
Domains are set to auto renew
Billing contacts remain current
Critical domains are renewed for multiple years where appropriate
Evidence preservation processes
Steps for phishing or impersonation takedowns
Regular auditing helps reduce the risk of unexpected expirations.
9. Are Defensive Registrations Reviewed Regularly?
Threat actors frequently exploit typo domains, lookalike domains, and regional variants to conduct phishing and impersonation attacks.
A defensive registration strategy should consider:
Common typos
Regional domain extensions
Key product or campaign names
High-risk brand variations
Monitoring newly registered lookalike domains can also provide early warning of phishing activity.
Final Thoughts
Domain portfolios are often overlooked until an incident occurs. However, domains sit at the centre of an organisation’s digital identity and should be treated as critical infrastructure.
A regular domain portfolio health check can help organisations:
Reduce operational risk
Improve visibility
Strengthen security controls
Enhance governance
Even small improvements in registrar security, DNS governance and renewal management can significantly reduce the likelihood of domain-related incidents while improving operational resilience and visibility across your digital assets.
At Brandsec, we help organisations strengthen domain governance, enhance portfolio security and simplify the management of complex domain portfolios. Whether you’re looking to improve security controls, streamline administration, or gain greater visibility over your domain assets, our team can help. Contact us to learn more about our corporate domain management services.
About brandsec
brandsec is a team of highly experienced domain name management and online brand protection experts. We provide corporate domain name management and brand enforcement services, helping brands eliminate phishing platforms across the internet. Supporting some of the largest brands in the region, we offer innovative solutions to combat threats across multiple industries.
