API to search current and historical DNS records, current and historical WHOIS, technologies used by sites and whois search for phone, email, address,
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OSINT.sh tool for checking historical DNS records and domain infrastructure changes.
Attack-surface and DNS intelligence platform for domains, subdomains, IPs, and historical records.
OSINT.sh tool for checking historical WHOIS records and domain ownership changes.
Malware research archive with papers, samples, writeups, and historical security material.
Archive for searching Donald Trump's historical Twitter posts by date, topic, or keyword.
Historical malware archive mirrored by vx-underground for research and preservation.
Google certificate transparency search for checking certificates and HTTPS records.
OFAC search tool for checking sanctions lists, entities, individuals, and compliance records.
AnalyzeID is a unified search tool for finding web pages, files, records, code, or internet intelligence.
Searchable public database related to suspected terrorism records and security research references.
A fast and multi-purpose DNS toolkit from ProjectDiscovery for running DNS probes, resolving records and filtering DNS responses.
Retrieve DNS records, subdomains, SSL certificates and WHOIS / RDAP data for a given website.
Domain monitoring tool for tracking DNS changes, records, and domain activity.
DDoSecrets project for searching and analyzing public-interest datasets and leaked records.
OSINT.sh tool for finding domains that share the same mail exchanger records.
Verisign WHOIS lookup for checking domain registration records and registry information.