This is the back-end system for Trillian.

NAT64Check consists of three layers:

• Zaphod: the president of the NAT64Check universe
  • Front-end: the user interface for scheduling tests and looking up results
  • Back-end: the API where tests are dispatched to one or more Trillians
• Trillian: the coordinator of a test-run and master of Marvins
• Marvin: the menial worker performing a part of a test

There are multiple Trillians, each coordinating tests in a part of the world. Each Trillian controls multiple Marvins. Each Marvin is connected to a different kind of network (IPv4-only, NAT64 etc.) to test a website under different circumstances.

There is only one Zaphod, controlling all Trillians.