Spamhaus ZRD – Zero Reputation Domains

Identify 'Newly Registered' Domains


Spamhaus ZRD – Zero Reputation Domains

Identify ‘Newly Registered’ Domains 

Most new domains are malicious. ZRD Provides intel and protection from newly-registered domains, until it is established that they are not malicious


Spamhaus Technology has introduced a new Zero Reputation Domain (ZRD) service based on Spamhaus’ temporal data. ZRD automatically adds newly-registered domains to a blocklist, allowing you to protect your customers from receiving emails from new malicious domains.

Blocking email traffic associated with recently registered Domains provides an extra layer of protection against malware, ransomware and spamming. The ZRD blocklist from Spamhaus is proven and easy to implement. Spamhaus Technology’s continuously updated ZRD datastream allows security providers to block email traffic sent from newly-registered domains before they can do any harm.

The ZRD blocklist helps to protect your users from clicking on links and visiting newly-registered domains until it can be firmly established that they are not associated with zero day attacks; phishing; bot-herding; spyware and ransomware campaigns.

What it is

Research by Spamhaus has driven the development of the Zero Reputation Domain service designed to thwart cyber criminals who use newly registered domains to send spam and drive traffic to harmful websites hoping that users will fall victim before a domain has been analysed for its reputation. Legitimate organisations will rarely activate a domain and start using it immediately after registration so the ZRD automatically adds newly-registered and previously dormant domains to a blocklist for 24 hours. This protects users from unknown domains until it can be firmly established that they are not associated with zero day attacks, phishing, bot-herding, spyware and ransomware campaigns.

Blocking email traffic associated with recently registered Domains provides an extra layer of protection against malware, ransomware and spamming. The ZRD blocklist from Spamhaus is proven and easy to implement.