Last night and this morning my team has been getting alerts saying that our sites are down. When we browse to the sites ourselves we are able to hit them and log into them without any issues. Even though the alarms are stating that the site is down. 

When we get the alert and are sent the ROOT cause email about it we get the following 

HTTP/1.1 301 Moved Permanently
Server : nginx/1.14.0 (Ubuntu)
Date : Wed, 13 Mar 2019 02:07:45 GMT
Content-Type : text/html
Content-Length : 150
Connection : keep-alive

This happened from 10:30PM eastern on 3/12/19 to 04:30AM on 3/13/19.

the error shows on all of the sites we had the error with.