https://en.wikipedia.org/wiki/Domain

https://en.wikipedia.org/wiki/Domain_Name_System

https://en.wikipedia.org/wiki/Domain_name

https://en.wikipedia.org/wiki/Domain-specific_language

Deal Alerts: Instant Notifications on the Best Deals

Allocated and Unallocated AS blocks – CIDR … – CIDR Report

Allocated and Reserved AS blocks – CIDR Report

List of Autonomous System Numbers – BGP Looking Glass