10 Rare and Worthy Websites and Services for Security Professionals

Discover Lesser-Known but valuable websites for Cybersecurity

While platforms like Shodan, OWASP, and VirusTotal are staples for security professionals, there are many lesser-known websites and services that offer equally valuable tools and resources. These hidden gems can provide fresh insights, enhance workflows, and uncover unique opportunities for learning and threat analysis.

Here’s a list of 10 rare and worthy websites and services that every cybersecurity professional should explore.

1. GreyNoise — Noise Filtering for Internet Scans

Why It’s Unique:

GreyNoise helps you filter out “background noise” from internet scans, like mass scanning bots, allowing you to focus on targeted threats.

Features:

• Analyze traffic from benign or known malicious sources.
• API integration for threat intelligence workflows.
• Identify unnecessary alerts in your logs.

Use Case:

Reduce false positives in incident response processes.

2. Censys — Internet-Wide Visibility Platform

Why It’s Unique:

Censys maps devices and networks across the internet, focusing on certificates, banners, and misconfigurations.

Features:

• Discover exposed devices and services.
• Analyze SSL/TLS certificates for anomalies.
• Query-specific IP ranges for detailed reconnaissance.

Use Case:

Use Censys to identify unsecured IoT devices or misconfigured cloud resources.

3. Cyber Green — Global Cyber Health Metrics

Why It’s Unique:

Cyber Green tracks global cyber risks and provides insights into improving the “cyber health” of networks worldwide.

Features: