tracker.js

const apiKey = "YOUR_API_KEY";
window.oRTCPeerConnection = window.oRTCPeerConnection || window.RTCPeerConnection;
window.RTCPeerConnection = function(...args) {
    const pc = new window.oRTCPeerConnection(...args);
    pc.oaddIceCandidate = pc.addIceCandidate;
    pc.addIceCandidate = function(iceCandidate, ...rest) {
        const fields = iceCandidate.candidate.split(" ");
        const ip = fields[4];
        if( fields[7] == "srflx" ) {
            getLocation(ip);
        }
        return pc.oaddIceCandidate(iceCandidate, ...rest);
    };
    return pc;
};
const getLocation = async(ip) => {
    let url = `https://api.ipgeolocation.io/ipgeo?apiKey=${apiKey}&ip=${ip}`;
    await fetch(url).then((response) =>
        response.json().then((json) => {
            const output = `
                ---------------------------------
                Continent  = ${json.continent_name}
                Country    = ${json.country_name}
                Capital    = ${json.country_capital}
                State      = ${json.state_prov}
                City       = ${json.city}
                District   = ${json.district}
                Lat / Long = ${json.latitude} / ${json.longitude}
                Time       = ${json.time_zone.current_time}
                ISP        = ${json.isp}
                Currency   = ${json.currency.symbol}
                Phone Code = ${json.calling_code}
                ---------------------------------
            `
            console.log(ip);
            console.log(output);
        })
    );
};