[melvinmt]

> Now your site and your monitoring is down. Much better to outsource to people who obsess over doing this right and making sure they are properly redundant.

You make valid points about redundancy and levels of reliability but keep in mind that even Pingdom can go down: http://royal.pingdom.com/2016/10/24/ddos-attack-affects-ping...

[user5994461]

Chances are that pingdom won't be down at the same time that your site is down.

Diversify to avoid cascading failures ;)

[imtringued]

With your own solution you will likely encounter the same problems that pingdom faced including this one. The benefit of a service like pingdom is that they already solved those problems for you or if they haven't you don't have to waste time solving them yourself. It's not very efficient if everyone solves the same problems over and over again.

[dharma1]

Use 2 or more providers. Signing up takes a minute or two and there are free alternatives