OpenResolve is a Docker Image for retrieving domain information as a REST-ish service. Fork it on Github, or try the demo at

  • Use any DNS resolvers via an environment variable
  • Reverse-DNS lookups
  • Internationalized character support via a Punycode converter

OpenResolve is an open-source project completed by Kevin Funk and Ryan Piaget in completion of their Master's Project at University of San Francisco during an internship at OpenDNS. The project is advised and maintained by Eric Reynolds and Philip I. Thomas. The source code is made available under a BSD License.