check-gzip

#!/usr/bin/env bash

if [ ${#1} -eq 0 ]
  then echo "Error: Please supply a URL"; exit 1;
fi

ENCODING_HEADER=$(curl --silent -I $1 -H "Accept-Encoding: gzip,deflate" |  tr -d '\r' | sed -En 's/^Content-Encoding: (.+)$/\1/p')

if [ "$ENCODING_HEADER" == "gzip" ]
  then echo "GZIP: Enabled"
  else echo "GZIP: Disabled"
fi