I would like to use your service but as I see it already has downtime.
You don't plan to make it reliable ?
Also does it have option that if my server is not available that it tries to deliver notification later ?
If I didnt plan to make it reliable, I would not have spent the time to move it to a new server, now would I You don't plan to make it reliable ?
Also does it have option that if my server is not available that it tries to deliver notification later ?
It will retry for a few times, but if your server is down more than 10-20minutes, the notification will fail.
However you can use pubnub, and their history command to check for missed events.
The downtime was because my previous VPS provider did a very poor job, ended up with a broken database, and had to move it yesterday.
For now its hosted at slicehost, and by the end of next month, when my new dedicated is ready, it will be moved as a VPS on that.
If this takes off, then I will ofcause make redundant systems with HA failover.
But as long as its low volume, a VPS on my dedicated should have plenty of uptime.