dnsbench.sh: DNS resolver benchmark utility

dnsbench.sh

#!/bin/zsh

RANK_URL="https://moz.com/top-500/download/?table=top500Domains"

echo "Downloading domain list..."
list=$(curl -fsSL "$RANK_URL" | awk -F, '{if (NR!=1) print $2}')

sum=0
while read line;
do
  ms=$(drill @"$1" TXT "$line" | grep msec | awk '{print $4}')
  i=$((i+1))

  sum=$((ms+sum))
  echo -e "\e[1A\e[K$i"
done < <(echo $list)

echo "Average resolving time: "$((sum/i))"ms"