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OSINT.sh tool for checking historical DNS records and domain infrastructure changes.

DNS Propagation is a developer resource for coding, documentation, communities, security research, or software tools.

DNS Watch is a developer resource for coding, documentation, communities, security research, or software tools.

DNSHistory is a developer resource for coding, documentation, communities, security research, or software tools.

A fast and multi-purpose DNS toolkit from ProjectDiscovery for running DNS probes, resolving records and filtering DNS responses.

mess with dns is a developer resource for coding, documentation, communities, security research, or software tools.

DNS over HTTPS is a GitHub repository or organization with source code, releases, documentation, or project resources.

DNSPerf helps developers write, search, review, test, or manage code and projects.

dnSpyEx is a GitHub repository or organization with source code, releases, documentation, or project resources.

Mess With DNS is a GitHub repository or organization with source code, releases, documentation, or project resources.

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

DNS History is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.

DNSStuff is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.

DNSViz is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.

Remote DNS Lookup is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.

Collection of online network tools for DNS, IP lookup, email checks, and security research.

Domain monitoring tool for tracking DNS changes, records, and domain activity.

is an IP address and domain name based researching websites that offers multiple services such as Reverse DNS Lookup, Whois, and AS Macros.

Attack-surface and DNS intelligence platform for domains, subdomains, IPs, and historical records.

One-plus website information page for checking domains, technology, DNS, and site details.

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

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

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

Retrieve DNS records, subdomains, SSL certificates and WHOIS / RDAP data for a given website.