============================================ Checking availability of Launchpad frontends ============================================ Launchpad is using round-robin DNS to load balance requests among the frontends. So in order to check the availability of the frontends, you need to get a list of all frontends and then check them individually. Get list of frontends ===================== .. code-block:: shell-session $ host launchpad.net launchpad.net has address 185.125.189.223 launchpad.net has address 185.125.189.222 launchpad.net has IPv6 address 2620:2d:4000:1001::8003 launchpad.net has IPv6 address 2620:2d:4000:1001::8004 launchpad.net mail is handled by 10 mx.launchpad.net. Check individual frontend ========================= .. code-block:: shell-session $ curl --resolve launchpad.net:443:185.125.189.222 https://launchpad.net/ More infos on `using curl `_.