Censys Attack Surface Management is a commercial external attack surface management solution by Censys. Shodan is a free external attack surface management solution. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Teams wanting broad internet data behind discovery
It is on the list because discovery rests on a map of the whole internet that Censys keeps current, and the same data serves threat hunting, which suits a team that wants one source for both jobs. It fits mid-market and enterprise companies. Ask how it ranks risk for your assets, since a broad map is only as useful as the order it puts findings in.
From Best Attack Surface Management Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Hi Citrix. Hide VPNs. Hide Windows on a LAN. Knocknoc solves this. Just in time identity linked allow-listing. DIY, on-premise or SaaS. Prevent attacks fast.
VisitInternet intelligence platform for asset discovery and attack surface mapping
A search engine for the Internet of Things (IoT) that discovers and monitors devices connected to the internet.
See more solutions in this category, or build a security stack from your picks.
Need the answer fast? Best Attack Surface Management Solutions for Business picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.See the shortlist
Based on what each listing shows: deployment, company size, price and open source.
Shodan fits if you are a small business and you need a free product.
Common questions when comparing Censys Attack Surface Management vs Shodan for external attack surface management.
Censys Attack Surface Management: Internet intelligence platform for asset discovery and attack surface mapping. Built by Censys.
Shodan: A search engine for the Internet of Things (IoT) that discovers and monitors devices connected to the internet.
The table above shows where their features, integrations, deployment and company size fit differ.
Often, yes. Censys Attack Surface Management and Shodan are both External Attack Surface Management products. Key differences: Censys Attack Surface Management is Commercial while Shodan is Free. Use the table above to see where features, deployment and company size fit differ.