NAT Meter is an attempt to measure 44 and 66 NAT (yes, 66 NAT) in the LAC region. It is based on JavaScript calls to STUN / TURN servers that provide information about the client's connection. Based on this [WebRTC project] (https://github.com/diafygi/webrtc-ips) by @diafygi.
Embed the following script on your site, to let us trigger measurements form your visitors' browsers:
<script src="https://cdn.dev.lacnic.net/lacnic-net-measurements.js"></script>
