So.
I tried many monitor service for my critical websites. Main website , my servers etc.
Tried:
-Uptimerobot (false alerts sometimes)
-Monitority (free sms but sometimes not get sms)
-Port-monitor (many false alert)
-Nixstats BETA (still in beta sometimes false alerts , np.)
So... i want more professional but dont know... i tried paid type and free type. Finally i found newrelic.com. Added my websites , and selected 1 min check interval and 4 locaton. So 4 location check it then alert me. This seems the best monitor. And free for the first 50 website , then its 69usd/mo
If you are interested... check it :) http://newrelic.com/synthetics
Thanks for your time :) Peter
( i am not a staff member of newrelic just i want.. to get everybody a better free solution as we know the price is a big lord)