ping with HTTP requests.
Give httping an url, and it'll show you how long it takes to connect, send a request and retrieve the reply (only the headers). Be aware that the transmission across the network also takes time! So it measures the latency of the webserver + network. It supports IPv6.
2.9bin/httpingaarch64-darwinaarch64-linuxarmv5tel-linuxarmv6l-linuxarmv7a-darwinarmv7a-linuxarmv7l-linuxi686-darwini686-linuxloongarch64-linuxm68k-linuxmicroblaze-linuxmicroblazeel-linuxmips-linuxmips64-linuxmips64el-linuxmipsel-linuxpowerpc64-linuxpowerpc64le-linuxriscv32-linuxriscv64-linuxs390-linuxs390x-linuxx86_64-darwinx86_64-linux