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Bitdefender map showing detected cyber threats, malware activity, and attack trends.

CheckFileType supports reverse engineering, malware analysis, file inspection, or security research workflows.

Cisco Talos portal for threat intelligence, IP reputation, advisories, and malware research.

Exploit-DB paper archive with security research, exploitation papers, and technical writeups.

Exploit-DB binary exploit archive for security research and controlled testing.

Fortinet map visualizing cyber attack activity, malware detections, and global threat events.

LemmeDebug supports reverse engineering, malware analysis, file inspection, or security research workflows.

Threat intelligence search engine for domains, IPs, hashes, malware, and related indicators.

CentralOps collection of DNS, WHOIS, traceroute, email, and network lookup tools.

Scan Results Guide is a beginner-friendly guide, reference, or tool for safer browsing, media, apps, or web resources.

Guide to free and open source privacy tools, safer apps, and alternatives to data-heavy services.

Free DNS, WHOIS, DKIM discovery, SPF/DMARC analysis and blacklist checks with plain-English results, no signup.

Privacy Guides comparison page for choosing VPN providers and understanding VPN tradeoffs.

Threat analysis service for URLs, files, certificates, domains, and suspicious hashes.

Maps who links to any domain using the open Common Crawl hyperlink graph. Free, no-signup referring-domain and competitor link-footprint lookups for d

Free and open-source domain and infrastructure research toolkit combining DNS, RDAP, WHOIS, passive subdomain discovery, IP and ASN data, email authen

Free, no-login IP reputation lookup that aggregates up to 8 risk sources, flags residential vs datacenter, and profiles /24 C-block neighbors. Also of

Is a free platform offering network diagnostic tools (ping, traceroute, MTR, DNS, WHOIS, HTTP, etc.) tailored for ISPs and infrastructure professional

is a website that gives you a free and comprehensive report about a specific website.

Columbus Project is an advanced subdomain discovery service with fast, powerful and easy to use API.

Hash lookup service for checking password hashes against large precomputed cracking databases.

Threat intelligence search service for checking IPs, domains, hashes, and security indicators.

Reverse MD5 lookup service for checking whether an MD5 hash matches known plaintext.

Hash recovery service for checking password hashes and related encrypted password formats.