Public domain and freely available benchmarking content.
While Google misses many directories, (a search engine for internet devices) specializes in finding open ports and directories. Search for: services.http.title:"Index of /" AND "4k" This returns live servers, including misconfigured NAS (Network Attached Storage) drives and Plex servers. index of 4k videos
: Specifically optimized for ultra-high-definition content for YouTube and professional presentations. Workflow for a "Full Feature" 4K Video Converter - Make Any Video 4K Online - Topaz Labs Public domain and freely available benchmarking content