First navigate to Configuration > Host Groups > Create Host Group and name it as "Web Servers Host Group".
Create a Host Manually
Then Configuration > Hosts > Create a Host
Make sure you select DNS and click Add.
Now We are going to Create an Application, triggers and graphs and web scenerio for this Host. Click on the web site host we created.
Create an Application
Choose Application > Create Application > Give a name like MySite Web Monitoring
Create a Web Scenerios
Choose Web Scenerios> Create Web Scenerio>
Click Steps and add a new step
Click add to save the step> Then click add once more to save web scenerio
Create 2 Triggers
Choose Triggers> Create Trigger >
This triiger is for web site down
Severity is disaster
Click Add to save the trigger
Create another trigger for web site response time
Choose Triggers> Create Trigger >
This trigger is for web site is too slow
Severity is High
Create 2 Graphs, for Download Speed and Response Time
Create Graph>
Create another graph for Response time like below
Now Create an Action that sends email or SMS
After you complete the screen above, complete also operations, recovery and update tabs and choose to whom you want to send zabbix notifications.