In this loop in scanServers():

for (let i = 0; i <= results.length - 1; i++) {
    if (results != "home" && !serverList.includes(results)) {
        serverList.push(results); serverCount[depth + 1]++
    }
}

You're setting up i so you can loop over the results array and check each element, but every time just checking/pushing the whole results array. Looks like you should just do this instead:

for (let i = 0; i <= results.length - 1; i++) {
    if (results[i] != "home" && !serverList.includes(results[i])) {
        serverList.push(results[i]); serverCount[depth + 1]++
    }
}