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)
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 out who we work with and how you can become a Spamhaus Partner.
Discover a wide range of blog posts, case studies and reports.
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.
Protect your network edge with the most up to date protection against botnets and external attacks on your servers.
Border Gateway Protocol (BGP) Feeds effortlessly block communications with IPs involved in the most dangerous cybercrimes and assist in stopping DDoS attacks.
Utilizing your existing BGP routers, you can maximize the benefits and protection you get from current equipment.
Standard routers running BGP accept advertised routes from other BGP routers, by default. This routine, automated process means that IP addresses with routing privileges are highly valued by cybercriminals.
Any routers within your network that are peered with the Spamhaus BGP router will not be able to communicate with botnet command and controllers (C&Cs), preventing loss of data and spamming from infected nodes on your network.
Network engineers and security operations centers [SOCs], plus anyone who manages their own network edge routers.
It takes just a few minutes to configure your edge router to peer with a Spamhaus BGP router.
After installing the “Botnet Controller List” (BCL) and “Do Not Route or Peer” (DROP) in your router’s routing table, communications with botnet C&Cs are blocked.
This prevents infected computers within your network from receiving instructions and malware updates. The BCL disrupts communication with the C&C servers, neutralizing botnet nodes within your network and stopping sensitive data egress, even though the devices have not yet had the malware removed.
Based on network size, starting from $2,500 per annum.
Block malicious traffic at your network edge using Do Not Route or Peer (DROP) & Botnet Controller Lists.
Get a FREE 30 day trial of our BGP Feeds. No credit card details required.
26 July 2022
This quarter botnet C&C activity reduced slightly, and operators within the LatAm region appeared to be getting control of newly observed botnet C&C abuse, but two well-known global network operators struggled to get to grips with continuing abuse.
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.