#!/bin/bash
set -euo pipefail

if [ $# -ne 1 ]; then
  echo 1>&2 "Usage: $0 URL"
  exit 3
fi

echo "Checking $1"

curl -L -I -H "Accept-Encoding: gzip,deflate,br" "$1"  --silent | grep -i "Content-Encoding:" || echo "Content-Encoding not found in response"

echo -ne "compressed:\t"
curl -L -H "Accept-Encoding: gzip,deflate,br" "$1" --silent --write-out "%{size_download}"  --output /dev/null
echo -ne "\nuncompressed:\t"
curl -L "$1" --silent --write-out "%{size_download}"  --output /dev/null
echo