How to configure a systemd service like tomcat with Type=notify so that startup completion signifies website availability

Issue

• How can you configure a systemd service in Red Hat Enterprise Linux (RHEL) 7 such that a systemctl start command doesn't return until certain websites are available?

• I have Tomcat running on a server. When I use systemctl to restart the service, it doesn't accurately confirm the startup status; instead it returns immediately, prior to the service actually being ready.