Verisign WHOIS lookup for checking domain registration records and registry information.
Whoxy is a hosted web service that returns parsed WHOIS fields to applications in XML or JSON format over HTTP requests. It follows WHOIS registry referral chains to find the correct servers, and supports 2026 domain extensions including gTLDs and ccTLDs. The page notes a free account signup and query pricing by volume.
CentralOps collection of DNS, WHOIS, traceroute, email, and network lookup tools.
The Network Entity Reputation Database IP search is a CESNET page that searches and lists IP addresses with hostname, ASN, country, events, reputation score, threat category, other properties, time added and last activity. It provides links to services including Shodan, Censys, AbuseIPDB, Talos Intelligence Center, Greynoise Visualizer and DShield. Results shown include DShield reports and OTX pulses.
Internet Census 2012 is a research paper describing a distributed port scanner built on insecure embedded devices with empty or default credentials. It scanned all IPv4 addresses and includes service probes for common ports, ICMP ping, reverse DNS and SYN scans. Data gathered during the research was released into the public domain.
Python OSINT crawler for extracting URLs, files, endpoints, and related website data.
LeakIX is a search and reporting platform with query syntax for ports, protocols, ASNs and IP ranges. It offers free and commercial plans, with paid tiers providing faster access to results, higher request limits, critical and RCE plugins, alert channels and downloadable results. Sponsorship supports voluntary researchers who dispatch free reports to companies and institutions.
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Whoxy is a hosted web service that returns parsed WHOIS fields to applications in XML or JSON format over HTTP requests. It follows WHOIS registry referral chains to find the correct servers, and supports 2026 domain extensions including gTLDs and ccTLDs. The page notes a free account signup and query pricing by volume.
CentralOps collection of DNS, WHOIS, traceroute, email, and network lookup tools.
The Network Entity Reputation Database IP search is a CESNET page that searches and lists IP addresses with hostname, ASN, country, events, reputation score, threat category, other properties, time added and last activity. It provides links to services including Shodan, Censys, AbuseIPDB, Talos Intelligence Center, Greynoise Visualizer and DShield. Results shown include DShield reports and OTX pulses.
Internet Census 2012 is a research paper describing a distributed port scanner built on insecure embedded devices with empty or default credentials. It scanned all IPv4 addresses and includes service probes for common ports, ICMP ping, reverse DNS and SYN scans. Data gathered during the research was released into the public domain.
Python OSINT crawler for extracting URLs, files, endpoints, and related website data.
LeakIX is a search and reporting platform with query syntax for ports, protocols, ASNs and IP ranges. It offers free and commercial plans, with paid tiers providing faster access to results, higher request limits, critical and RCE plugins, alert channels and downloadable results. Sponsorship supports voluntary researchers who dispatch free reports to companies and institutions.
