test the speed of DNS servers

dnsspeedest.sh

#!/bin/bash

target="${1:-google.com}"
echo testing  $target

main()
{
# Enter the DNS providers you want to test
hosts='[
    {
      "name": "Cloudflare std",
      "IP": "1.1.1.1"
    },
    {
      "name": "Cloudflare Malware",
      "IP": "1.1.1.2"
    },
    {
      "name": "Google",
      "IP": "8.8.8.8"
    },
    {
      "name": "OpenDNS",
      "IP": "208.67.222.222"
    },
    {
      "name": "Quad9",
      "IP": "9.9.9.9"
    },
    {
      "name": "nextdns",
      "IP": "45.90.28.22"
    },
    {
      "name": "Unbound",
      "IP": "192.168.0.1"
    }
]'

echo $hosts | jq -c '.[]' | while read i; do
        IP=$(echo $i | jq -r '.IP')
        name=$(echo $i | jq -r '.name')
        result=$(dig @${IP} ${target} | grep Query | cut -d":" -f2)
        printf '%-20s %-10s\n' "$name:" "$result"
done
}

foo=$(main)
echo "$foo" | sort -n -t ':' -k2

Use

You can specify a test target or not

./dnsspeedtest.sh Firewalla.com

If you don’t specify a test target, google.com is the default.

This should run on Firewalla, macOS, or most Linux distros.

To sort the providers alphabetically,

./dnsspeedtest.sh | sort

Note: change the Unbound IP to be your Firewalla LAN.

Sample results