curl
Check response times
The following is an example of a command that can be use to see the timing of various points in a HTTP request like the DNS lookup time.
curl -w "dnslookup: %{time_namelookup} | connect: %{time_connect} | appconnect: %{time_appconnect} | pretransfer: %{time_pretransfer} | starttransfer: %{time_starttransfer} | total: %{time_total} | size: %{size_download}\n" <URL>
Post data to webhook and show response headers
curl -D - -X POST --data "@sample.json" "http://172.16.60.22:8099/webhook"