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News Article

Deteqtive Passive DNS Intelligence - available to trial

In July, we released early access to Deteqtive passive DNS Intelligence. Following months of extensive testing and user feedback, it’s now available with two new ways to integrate the data into your own systems and full documentation to help you get started.

Blog

abuse.ch API: what’s new and what’s coming?

If you looked at the API from Spamhaus when it first launched, it's worth another look at how it differs from the community API, what's available now and what's planned on the roadmap. Spoiler alert: we now have file exports and a new integration!

Report

Domain Update, April - September 2026

Over the last six months, 57.1 million new domains were registered (+21.8%), with China’s .cn (+77%) and .com.cn (+515%) primarily responsible. Malicious and suspicious domain listings increased +56.6% to 3.37 million, reaching 1.15 million in September - the highest month on record! Find out why in the latest Spamhaus Project Domain Reputation Update.

Blog

Passive DNS vs. active DNS: what's the difference?

Every day, billions of DNS lookups translate domain names into the infrastructure behind them. Most of those answers are used once and forgotten… unless recorded. For anyone investigating suspicious infrastructure, these records can be the difference between a dead end and a lead.  In this blog post, we take a closer look at both active and passive DNS, how they work, and how investigators use them to build a clearer picture of suspicious infrastructure.

Blog

Pivoting through DNS

Turn a single indicator — a domain, an IP, a lookalike — into the whole campaign. How forward, reverse, and fuzzy passive DNS searches let you pivot across malicious infrastructure.

Case Study

cyber_Folks protect customers and network with Spamhaus’ enhanced email protection

By integrating [Spamhaus’s real-time blocklists](https://www.spamhaus.com/data-access/real-time-dns-blocklists/) and enabling the sharing of basic email connection data, Polish-based hosting provider, cyber_Folks, has achieved an enhanced, targeted email protection for its customers. Read on to learn more.

News Article

Introducing Deteqtive: Passive DNS, evolved into Passive DNS Intelligence

Introducing Deteqtive: a new passive DNS intelligence platform powered by Spamhaus data, designed to make investigations faster and more intuitive. Deteqtive is rolling out now for early access - find out what's new, why we built it, and how to get started.

Blog

Ways to use passive DNS intelligence: Security Professional

Find out how passive DNS intelligence is helping security professionals easily identify patterns of malicious behaviour on the internet and highlight additional areas of concern.