Vikrum's mighty CURL command

curl.sh

curl -so /dev/null -w "url_effective = %{url_effective}\n http_code = %{http_code}\n http_connect = %{http_connect}\n time_total = %{time_total}\n time_namelookup = %{time_namelookup}\n time_connect = %{time_connect}\n time_appconnect = %{time_appconnect}\n time_pretransfer = %{time_pretransfer}\n time_redirect = %{time_redirect}\n time_starttransfer = %{time_starttransfer}\n size_download = %{size_download}\n size_upload = %{size_upload}\n size_header = %{size_header}\n size_request = %{size_request}\n speed_download = %{speed_download}\n speed_upload = %{speed_upload}" https://<your instance>.firebaseio.com/some/deep/path.json 

sample_output.sh

url_effective = https://v.firebaseio.com/.json
 http_code = 200
 http_connect = 000
 time_total = 0.250
 time_namelookup = 0.003
 time_connect = 0.057
 time_appconnect = 0.186
 time_pretransfer = 0.186
 time_redirect = 0.000
 time_starttransfer = 0.250
 size_download = 91
 size_upload = 0
 size_header = 111
 size_request = 152
 speed_download = 363.000
 speed_upload = 0.000