add num_scripts_async, num_scripts_sync & usertiming (intentionally did NOT use "not null" so I can track how often the script fails to run)
add num_scripts_async, num_scripts_sync & usertiming (intentionally did NOT use "not null" so I can track how often the script fails to run)

HTTPArchive/httparchive,paulcalvano/httparchive,paulcalvano/httparchive,HTTPArchive/httparchive