What do you guys use for website uptime monitoring?
 

I use a couple of free services here and there for some of my sites but would like to use a single service to monitor the uptime of my 800+ websites. I am looking for a service similar to www.pingdom.com that has a package for an unlimited amount of domains. What do you guys use to monitor your sites uptime?

Bump for suggestions.

Edit: Deleted post, the URL baddog posted looks pretty darn good :thumbsup

Downside of servermojo is if you have 800 domains they won't check them very often, if I'm reading this page correctly: https://www.servermojo.com/cgi-bin/signup.pl

Big Biz - 2500/hour - $200/month

Is that 2500/hour, per monitor/URL? (A check every 1.44 seconds)
Or 2500 spread across your 800 domains?

Based on that they would get checked every 20 minutes or so. You'll have to do the math.

For uptime monitoring/stats, I'd rather be monitored every minute.

if you want to monitor that many sites it will be cheaper just to get a dedicated server just for monitoring and buy software.

Why not just monitor the server instead of each individual site on the server? You can pick a couple sites and know what is happening.

Thanks for the input everyone. :thumbsup

@SmellyNose
Would be nice to know what the 2,500/hour applies to, I think I will contact them for a definitive answer.

@sandman
Any software suggestions?

@baddog
The reason I would rather ping the sites over pinging my servers is that wont tell me if HTTP is down as far as I know. Every now and then one of my sites has a db error or something and I don't realize it until a week later (I am obviously unorganized). Would rather get an alert as soon as something is wrong with an individual site.

Actually, servermojo lets you set up ping, http and mysql, so it pretty much covers your needs.

If apache is down on one site it is a safe bet it is down on all on that server.

Uhm, when the db crashes or something but the webserver itself is still running most monitoring tools will show "online" - because a website was delivered (the software can't tell if you WANT the error to be there, can it?).

If you've all sites on dedicated servers you could set up a monitoring process that checks if individual processes are running (like apache, mysql, etc.) and sends you emails if one or more processes are not running and maybe even tries to restart them (monit can do that for example). You can get it at http://mmonit.com/monit/ or the multi-server version at http://mmonit.com/

If you're talking about virtual accounts or dedicated boxes where you've no root access it's a little bit more complicated. You could probably make a special comment into each sites source code like < ! - - SITE:xy:online - - > and set up a box that checks all sites for this code snippets - but of course that will generate HEAVY traffic if you want frequent checks.

Maybe you could combine different things - like just pinging the server every x min and check for the code snippet every 1 or 2 hours.

Thanks for the input, checking into this now. I guess I was looking for something similar to pingdom tools full page test > http://tools.pingdom.com/fpt/ but still have not found something like this to monitor the entire network.

you gotta try this. dns, monitoring and failover.

http://edgedirector.com/

been using it about 3 months for over 100 domains. the failover works great.

Nagios & Cacti

Meh, if you want something free.... with a weekly e-mail..... http://mon.itor.us/