Have you been blocked?
All blocklists are researched and managed by The Spamhaus Project.
Simply click on the link below, which will take you to the Project’s IP and Domain Reputation Checker. From here you will be able to enter your IP or Domain and begin your request for removal.
Please note that the Project’s IP and Domain Reputation Checker is the only place where removals are handled.
IT and security teams consistently face multiple business challenges. Discover how our solutions can help overcome some of those issues.
From processing issues, to email-borne threats our blocklists easily integrate with your current email set-up to improve anti-spam & anti-virus email filtering.
Employ our threat intelligence to increase visibility across security events, reveal potential weaknesses in your network, and threats to your brand.
Stay on top of the latest threats and proactively combat botnet infections, and other forms of abuse, with our solutions.
From clicking on phishing emails to visiting malware dropper sites, our threat intelligence provides automatic protection for your users.
Data for Integration
Enhance your service and create competitive advantage by integrating Spamhaus’ world-class IP and domain reputation data.
Our products provide additional layers of security for networks and email. They also present security teams with additional insight into malicious behavior.
Border Gateway Protocol (BGP) Firewall
Block the worst of the worst at your network edge, taking advantage of your existing BGP-capable routers. Configuration only takes minutes.
Data Query Service (DQS)
Benefit from industry-leading real time blocklists. These DNSBLs easily plug into your existing email infrastructure to block spam and other email threats.
A powerful research tool to investigate relationships between internet infrastructures. Quickly pivot to new areas of concern to rapidly investigate potential threats.
Immediately block connections to dangerous sites, including phishing and malware dropper websites. A ‘set and forget’ solution.
Spamhaus Intelligence API
Threat intelligence data in API format to enable users to easily integrate metadata relating to threats with their own applications, programs, and products.
A wide range of datasets, providing multiple layers of protection. They can be plugged directly into your existing hardware, making them an affordable choice.
Border Gateway Protocol (BGP) Feeds
Do Not Route Or Peer (DROP) and Botnet Controller List (BCL) datafeeds can peer with your existing BGP-capable router.
Domain (DBL), Zero Reputation (ZRD) and Hash blocklists (HBL) enable you to block content in emails, filtering out a higher rate of email-borne threats.
Data for Investigation
Passive DNS and extended datasets give you additional information on internet resources. They provide deeper insights into incidents and possible threats.
DNS Firewall Threat Feeds
A wide range of feeds to apply to your DNS recursive server. Choose the right level of protection for your organization.
Spam (SBL), Policy (PBL), Exploits (XBL) and Auth (AuthBL) blocklists allow you to filter email from IPs associated with spam, botnets, and other threats.
Find out more about us.
Learn more about Spamhaus; who we are, and what we do.
Find a parter
Discover our partners and how they can support you.
Become a partner
Learn about the benefits of being a Spamhaus partner and how to get started.
Discover a wide range of blog posts, case studies and reports.
Spamhaus’ insight into malware, botnet C&Cs, and the domain reputation landscape.
Commonly asked questions about Spamhaus products and processes.
The Blocklist Tester
A tool to help you check if your servers are correctly configured to use Spamhaus DNSBLs.
The Reputation Portal
A tool for ASN owners to get visibility of their IPs’ reputation and proactively manage listings.
Help for the Project's legacy DNSBLs users
Using the Project’s legacy blocklists and suddenly experiencing email issues? This page may be able to help.
In depth information about the technical details and implementation of our products.
Automatically block malicious activity at the DNS level, protecting your network and users.
DNS Firewall Threat Feeds provide automatic protection against malicious traffic, phishing sites, and malware downloads at the DNS level.
Security & IT teams can install this by leveraging existing equipment. Save on valuable resources as a result of less time spent on remediation.
DNS Firewall protects users from multiple threats. Not only does it stop them from accessing malware dropper sites or downloading ransomware, but it also prevents your users from unwittingly sharing confidential log-in information on compromised sites by blocking access to phishing domains.
It prevents cybercriminals from stealing data from your network. This is accomplished by blocking communications between external botnet command and controller (C2) servers and infected botnet nodes on your network.
Spamhaus’ DNS Firewall Threat Feeds can be utilized in multiple environments including networks run by ISPs and hosting providers, along with enterprise networks. We offer our customers two commercial access options for our Threat Feeds:
Sometimes referred to as a Response Policy Zone (RPZ), DNS Firewall applies threat intelligence data sets to DNS resolver traffic. This prevents DNS requests from resolving to malicious IP addresses and domains.
Based on users, prices start from $5,000 US per annum.
To protect yourself from the most malicious threats, you can sign up and access our DROP threat feed for free. However, this is only available for users who manage their own DNS.
A vast range of DNS Firewall threat feeds to choose from, allowing you to pick the right level of protection for your organization.
Get a FREE 30 day trial of our DNS Firewall Threat Feeds
29 June 2022
Internet Service Provider, CitraNET balances providing customers with the resources they request, while keeping them protected, with DNS Firewall Threat Feeds.
20 January 2022
Q4 update on the botnet command and controllers our researchers are observing, including geolocation and who is hosting them.
19 January 2022
Find out how many botnet controllers our researchers observed in 2021, who was hosting them and where.