Pingdom is one of the premium website monitoring services out there.
We have looked at free website monitoring services such as Montastic.
Free website monitoring services like Montastic could suffice if your needs don’t go beyond knowing when your website goes down. But, if you wanted to know more about uptimes, response times, error analysis, etc, you would something more robust like Pingdom.
Pingdom recently added a limited free account with which you can monitor one website only. This is excellent as you can experience all the features of Pingdom in your free account. 
You can see if this could be worth the investment in the premium accounts in the future.
Some of the features that set apart Pingdom are
- Different type of checks – HTTP, HTTPS, TCP Port, Ping, DNS, UDP, SMTP, POP3, IMAP, etc.
- Setup email or SMS alerts
- Overview of uptime and response time
- View an uptime report
- View a response time
- Error analysis
With the free account you also get 20 free SMS alerts.
If you have ever considered to try Pingdom before you purchased the service, here is your chance to try it for free.
Thanks K.. We are also planning on offering a free option similar to this over at http://www.ezwebsitemonitoring.com/ once we are out of beta. If you have time, you can checkout our offering as well which includes SEO tracking along with the uptime and response time monitoring. Love the new logo on the blog btw 🙂
.-= Aaron´s last blog ..We are now in Beta and looking for website monitoring testers =-.