UPDATE: 07 September 2017
Added additional Sources as per input from Richard’s comment. Thank you Richard.
Some Sites do not allow or block the monitoring pings (synocommunity) i am looking for a better solution to monitor without the need of a 3rd party service currently.
I just updated the Synomon Monitoring Website for 3rd Party Add-on packages for your Synology/Xpenology NAS
Just copy the Monitor Address and add as a new source in your package manager and enjoy the addon and refresh the packages.