Full page monitor script with 404 page.

Document ID : KB000116659
Last Modified Date : 05/10/2018
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Question:
Is it possible to monitor a website that is suppose to go to a 404 page? We have a website that we still want to monitor to make sure users can technically hit the site but it is suppose to go to a 404 page. Is it possible to do this with a full page monitor check? 
Answer:
This is not possible with a Full Page Monitor.  An HTTP error (non-200 response code) is always considered as a failure with a Full Page Monitor, an HTTP Monitor and an HTTPS Monitor. 

However, you can use a Script Monitor (Jmeter or Firefox) and test for the 404 error code and have that return 200 (OK) instead.