Censys
Censys is a search engine that allows users to view information on servers, websites, and devices that are connected to the internet. It provides insights into open ports, software versions, IP addresses, and more to improve cybersecurity.
search-engine
cybersecurity
device-scanning
Censys: Search Engine for Cybersecurity Insights
Censys is a search engine that allows users to view information on servers, websites, and devices that are connected to the internet. It provides insights into open ports, software versions, IP addresses, and more to improve cybersecurity.
What is Censys?
Censys is an internet search engine designed specifically for information on Internet-connected servers, websites, and devices. It allows cybersecurity researchers, businesses, and other users to view real-time data on the networks and systems that are exposed to the public internet.
Some of the information Censys provides includes:
- Open ports and services running on servers or Internet-connected devices
- Banners and software versions in use which can reveal vulnerabilities
- IP addresses, ownership records, and location information
- Certificates, allowing visibility into the relationships between domains and certificate authorities
- Websites and web application details, like CMS type and version
By aggregating and analyzing this data, Censys enables its users to assess cyber risks, monitor for threats and changes, identify misconfigurations, and improve the security posture of the greater Internet landscape. Businesses can use Censys to gain visibility over their Internet-facing assets, researchers can detect emerging threats or vulnerabilities in the wild, and cybersecurity teams can continuously monitor digital assets and environments.
Some key capabilities and use cases of Censys include real-time asset inventory, attack surface monitoring, vulnerability detection, threat hunting, Internet-wide risk identification, and Internet of Things (IoT) device tracking across global networks. Its goal is to shed light on the otherwise opaque nature of Internet-connected systems and to support a more efficient and proactive approach to cybersecurity.
Censys Features
Features
- Internet-wide search engine for devices
- Scans IPv4 space for open ports and services
- Provides details on software versions, certificates, and more
- API access for automated queries
- Customizable search filters
- Historical data on changes over time
Pricing
- Freemium
- Subscription-Based
Pros
Comprehensive visibility into Internet-connected assets
Helps identify vulnerabilities and misconfigurations
Useful for penetration testing, network mapping, and threat hunting
Powerful API for integrating into workflows
Free tier available with generous usage limits
Cons
Limited coverage of IPv6 space
No built-in vulnerability scanning
Can only view limited details without a paid account
Data not updated in real time
Requires technical knowledge to use effectively
Official Links
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