Please, suggest web server(web site, web hosting) monitoring service.
It should : - be online - monitor from different locations - monitor uptime, response time etc. - have alerts
Please, suggest web server(web site, web hosting) monitoring service.
It should : - be online - monitor from different locations - monitor uptime, response time etc. - have alerts
http://www.pingdom.com/ is my favorite of these that exist. Free for 1 website as well.
Your requirements do not list transaction monitoring, but I think that is important nowadays and narrows down your choice considerably. So if you also want to test if your site really works (aka "web application transaction monitoring") have a look at AlertFox, AlertSite or Webmetrics. The later has good reporting but is very expensive. AlertFox has a useful free plan.
For basic pinging, AreMySitesUp is worth a look - http://aremysitesup.com/
Not sure about services that log uptime etc
There are many services which do this another being - http://www.siteuptime.com/ - I think for the features you require its going to cost a little bit.
Some time ago I learned to set up and run nagios. I would recommend putting the time in and setting it up. It really is a valuable tool for alerting you to network and host problems. You can run it remotely on a server for ~$30 a month per server on a server contracted with your favorite hosting service.