The Spamhaus Project
BETA

Community contributions - sharing intelligence brings change

Make a difference! Be part of a community that shines a light on malicious internet activity. Share domains, IPs, URLs, or raw source that you believe are associated with phishing, spam, scams, and more.

Submit suspicious activity

Contribute one-off reports or submit at scale. Share raw source, an IP, domain, or URL linked to phishing, spam, scams or ransomware.

To get started, authenticate to create an account and gain access to an API for multiple submissions, along with submission tracking, history and recognition on our leaderboards.

Leaderboards

Last updated: 14th January 2026

Raw source

#1 Contributor by total number
Contributor: MB352,118Highest number of potentially malicious email submissions
#1 Contributor by % increase
Contributor: HB32+555%Largest increase in submissions month-on-month
January 2026
Robot with countries

Domain

#1 Contributor by total number
Contributor: EL6737,426Highest number of potentially malicious domain submissions
#1 Contributor by % increase
PhishHunter+7,133%Largest increase in submissions month-on-month
January 2026
Robot with countries

IP

#1 Contributor by total number
Sequretek Lab520,202Highest number of potentially malicious IP submissions
#1 Contributor by % increase
Sequretek Lab+866,903%Largest increase in submissions month-on-month
January 2026
Robot with countries

URL

#1 Contributor by total number
Contributor: NI4792,799Highest number of potentially malicious URL submissions
#1 Contributor by % increase
Contributor: KB92+1,150%Largest increase in submissions month-on-month
January 2026
Robot with countries

Raw source

#1 Contributor by total number
Contributor: MB352,118Highest number of potentially malicious email submissions
#1 Contributor by % increase
Contributor: HB32+555%Largest increase in submissions month-on-month
January 2026
Robot with countries
Leaderboards include all contributors with an account.

Why submit data to Spamhaus?


We all witness malicious behavior on the internet to some extent or another. This beta platform enables anyone to share this activity and help protect others.
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Who is the Threat Intel Community for?


Everyone who interacts online! From reporting a single spam email or amplifying the research you are already conducting, we are looking for intelligence from everyone.
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What will happen with my submission?


We value every piece of intelligence that is shared with us. We're currently in a discovery phase,learning the volumes, quality, and type of submission the community wants to make. Here's more detail...
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What can I access via my account?


All contributors must create an account to make submissions. In addition to submitting reports, find out what your account gives you access to.
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Listed?

Do you have problems sending email? Check here to see if your IP address or domain is on one of Spamhaus' blocklists.

Why I can trust Spamhaus

4.5 billion
Users protected
1998
Founded in
45 billion
Data points analyzed 24/7
8
Free datasets

Industry leader

Reputation data is at the heart of Spamhaus. Our researchers spend 24/7 tracking, analyzing, and investigating signals to detect potentially malicious IPs and domains.

28 year history

With decades of experience, Spamhaus is an integral part of the internet ecosphere, working with a wide range of trusted organizations, including law enforcement and networks, to affect change.

Accurate threat intelligence

Spamhaus datasets are actionable and accurate, with global coverage. Our data is compiled by industry experts whose sole focus is on making the internet a safer place.

Industry leader

Reputation data is at the heart of Spamhaus. Our researchers spend 24/7 tracking, analyzing, and investigating signals to detect potentially malicious IPs and domains.

28 year history

With decades of experience, Spamhaus is an integral part of the internet ecosphere, working with a wide range of trusted organizations, including law enforcement and networks, to affect change.

Accurate threat intelligence

Spamhaus datasets are actionable and accurate, with global coverage. Our data is compiled by industry experts whose sole focus is on making the internet a safer place.

Industry leader

Reputation data is at the heart of Spamhaus. Our researchers spend 24/7 tracking, analyzing, and investigating signals to detect potentially malicious IPs and domains.

28 year history

With decades of experience, Spamhaus is an integral part of the internet ecosphere, working with a wide range of trusted organizations, including law enforcement and networks, to affect change.

Accurate threat intelligence

Spamhaus datasets are actionable and accurate, with global coverage. Our data is compiled by industry experts whose sole focus is on making the internet a safer place.