MaxMind is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
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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
Domain Dossier is a tool that generates reports from public records about domain names and IP addresses. The reports may show owner contact information, registrar and registry details, the hosting company, IP address geographic location, server type and upstream networks. It accepts domain names and IP addresses; results are normally retrieved from original sources when requested, with copies kept in memory for up to 24 hours.
DNSai is a collection of DNS and email security tools on one page. It covers DNS record lookups, WHOIS, blacklist checks, SPF, DKIM and DMARC builders and validators, email header analysis and bulk domain scanning. The tools return plain-English AI summaries, and each is available through an API and MCP connectors.
digga is a free domain and infrastructure research tool that looks up DNS records, RDAP and WHOIS data, subdomains, IP details and email authentication in one report. It supports many DNS record types and passive subdomain enumeration. The project is open source under AGPL 3.0 with no accounts or paywalls.
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SmallSEOTools is a collection of free SEO tools for checking backlinks, tracking keyword positions and more. It groups text analysis, image editing, keyword, backlink, website management, tracking, domain and meta tag tools. A separate paid plan covers plagiarism checking, image search and related features.
Web Check is described as an all-in-one OSINT and security tool for revealing the inner workings of a website. It reports on items such as IP information, SSL certificates, DNS records, cookies, crawl rules and response headers.
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
Domain Dossier is a tool that generates reports from public records about domain names and IP addresses. The reports may show owner contact information, registrar and registry details, the hosting company, IP address geographic location, server type and upstream networks. It accepts domain names and IP addresses; results are normally retrieved from original sources when requested, with copies kept in memory for up to 24 hours.
DNSai is a collection of DNS and email security tools on one page. It covers DNS record lookups, WHOIS, blacklist checks, SPF, DKIM and DMARC builders and validators, email header analysis and bulk domain scanning. The tools return plain-English AI summaries, and each is available through an API and MCP connectors.
digga is a free domain and infrastructure research tool that looks up DNS records, RDAP and WHOIS data, subdomains, IP details and email authentication in one report. It supports many DNS record types and passive subdomain enumeration. The project is open source under AGPL 3.0 with no accounts or paywalls.
