Bitsight's Groma scanning engine maintains a continuous global survey of the public-facing Internet. Here you’ll find daily updates to an aggregated view of the Internet’s vendors, products, and vulnerabilities observed over the prior 30 days. These software observations are identified by an address, port, and domain name.
The workflow works, but manage expectations: you get a beautiful background image or rough vector outlines – not survey-grade CAD. For presentations or schematic design, it’s excellent. For construction layout, avoid it.