How we generate robust, actionable reputation data | Spamhaus
Learn more about Spamhaus' research, including where the data comes from, what and how we analyze it, and how IP and domain reputation can be used.
Strengthening trust and safety across the internet | Spamhaus
4 days ago · Strengthening trust and safety online through IP and domain reputation intelligence, expertise, education, and community collaboration.
The Spamhaus Project
Spamhaus' analysis of malicious IPs and domains, showing the types of abuse countries, networks, ccTLDs, gTLDs and registrars are experiencing.
Domain reputation | Blogs, news articles and reports | Spamhaus
Apr 15, 2026 · From the latest news and insights, to blogs and best practices, find resources on IP and domain reputation, malware, DNS blocklists, threat intelligence, and more.
Domain Report Oct 2025 - Mar 2025 | Spamhaus Project
Apr 15, 2026 · Find insight from Spamhaus Project researchers into domain abuse and trends with newly observed domains between Oct 2025 to Mar 2026.
Networks hosting exploited IPs - best & worst | Statistics
Find reputation statistics on the best and worst networks hosting exploited IP addresses.
Spamhaus Blocklist (SBL) | IP DNSBL for effective email filtering
Spamhaus Blocklist contains IPs identified as sending spam, hosting malicious content, hijacking IP space, or acting like a bulletproof hosting company.
IP and domain reputation - Spamhaus
Apr 15, 2026 · Stay up-to-date with IP and domain reputation management using these best practices, how-to guides, reports, and blogs.
FAQs | Deliverability, DNSBLs, Malware & reputation data
Find frequently asked questions relating to Spamhaus' data and research, offering general and best practices.
FAQs | Deliverability, DNSBLs, Malware & reputation data | Reputation ...
Find frequently asked questions relating to Spamhaus' data and research, offering general and best practices.