Web DNS https://github.com/ccbikai/DNS.Surf Ping https://ping.pe/ (DNS resolution is performed once in central location) https://globalping.io/ (max 500 endpoints per run, limited to 100000 per hour aggregated) https://tools.bunny.net/latency-test Reverse ping (latency to global locations) https://www.meter.net/tools/world-ping-test/ Latency between IDC locations Latency Numbers https://wondernetwork.com/pings