
Shodan
ZoomEye
Criminal IP
UpGuard
FOFA
Recorded Future
Rapid7
Censys helps organizations, individuals, and researchers find and monitor every server on the Internet to reduce exposure and improve security.

LeetCode
The bug you can't spot today ships tomorrow. Train before the incident: one realistic AI pull request a day, graded against a canonical review. Free, no signup.

Which is more popular?
Based on our record, Censys seems to be more popular. It has been mentioned 13 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | censys.com | diffdojo.com |
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In their own words, as submitted to SaaSHub.


Attack Surface Management (ASM) At Censys, we can see it all. Our world-leading attack surface management platform gives organizations a sixth sense — relentlessly monitoring assets, seeing the unseen, and proactively giving security teams an opportunity to solve issues before they have a chance...
No description of DiffDojo yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
Attack Surface Management
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Censys and DiffDojo. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


You should be able to see scans from censys.io, and other. Source: over 3 years ago
Some tools to consider: Gitleaks - open-source secret scanner for git repositories, files, and directories. Retire.js - dependency check tool for client JS code. Censys - It’s a search engine that you can use, for example, to scan any... Source: over 3 years ago
You also have censys.io, but I do not have much experience with them. Source: over 3 years ago
Tracking DiffDojo since Sep 2026.
When comparing Censys and DiffDojo, you can also consider the following products.

Shodan is the world's first search engine for Internet-connected devices.
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Practice and level up your development skills and prepare for technical interviews.
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Criminal IP protects IT assets and businesses by analyzing all years of cyber threats and prediciting exploits. Criminal IP provides real-time intelligence to enhance cybersecurity competencies in all aspects.
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Visibility into the state of your IT infrastructure, enabling you to understand your risk potential, prevent breaches, and speed up software delivery.
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FOFA is a Search Engine for global cyberspace mapping. Through continuous active detection of global Internet assets, identifying most software and hardware network assets.
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