The top-rated alternative to Shodan is Censys, which is open source with a free version. People also recommend ZoomEye, Criminal IP, FOFA and IVRE. There's no shortage of Vulnerability Scanners like Shodan, with more than 25 alternatives for the web, Linux, Windows, Mac and self-hosting.
Natlas is an open source project designed to provide scalable network scanning and an interface to search through the results. For more information, visit github.com/natlas/natlas
Put yourself in the shoes of a hacker! Without technical expertise, launch an audit to detect security flaws on your website or web application. Online website vulnerability scanner. No installation required. ISO & RGPD compliant. How to avoid hackers?
Websecurify is a powerful web application security testing environment designed from the ground up to provide the best combination of automatic and manual vulnerability testing technologies.
Vega is a free and open source scanner and testing platform to test the security of web applications. Vega can help you find and validate SQL Injection, Cross-Site Scripting (XSS), inadvertently disclosed sensitive information, and other vulnerabilities.
Canada
OSINT Researcher is a fast, login-free app that lets you discover and analyze all public GitHub repositories within any organization to support OSINT, security audits, recruiting, and collaboration scouting.
Australia
Enriched and structured information about every host on the Internet. Non-intrusive internet scanner, whois, domain names & SSL certs database.
United States
A fully automated, active web application security reconnaissance tool. Key features: High speed: pure C code, highly optimized HTTP handling, minimal CPU footprint - easily achieving 2000 requests per second with responsive targets.
United States
TEQNIX is a platform with a number of tools and strategies for penetration testers, red teamers and secops. It promotes automation with scanners and utilities and also assist in a real-time attack situation.
Golem Security Scanner is a powerful and intuitive website security scanner which uses a combination of proprietary and open source scanners to maximize the scan findings. Much less expensive for the paid version than other providers, with a free option which scans a portion of...
Test your website like a real attacker would. Nautillo Pro finds account takeover risks, API exposure, broken access control, and AI security flaws before users and hackers do.
Estonia
EU
ShipSafe is a free online website safety checker that helps users quickly analyze whether a website is safe or potentially risky. By entering a domain or URL, ShipSafe provides a trust score, security insights, and reputation indicators that help users avoid scams, phishing...
Bangladesh
Grabber is a web application scanner. Basically it detects some kind of vulnerabilities in your website.
