If you are a webmaster of a popular blog or website, then you might know how important is blog uptime. Downtimes can be because of multiple reasons like server issues or high load on server resulting in high CPU etc. But as a webmaster you need to make sure that the site is up all the time (or at least 99% of the time). There are many free website monitoring services, but each of them has features like multiple monitoring location, monitor interval and alert types etc. We had covered some of the free website monitoring options back in 2008, but things have changed and there are many other services offering free services.

Here we will cover the best website monitoring services comparing them for their features and monitoring interval.
|
Name of the monitoring service |
Type (Free/Paid) |
Monitoring Interval |
No of Websites |
Notes |
|
Free |
1 Minute |
1 (Email/ 20 SMS) |
Paid accounts available for 5 & 30 websites |
|
|
Free |
30 Minutes |
1 (Email) |
Paid accounts with 1,3 minute check |
|
|
Free |
1 Minute |
Multiple (Email, SMS, Twitter DM and desktop Alerts) |
We are not sure of the number of websites limit |
|
|
Free |
30 minutes |
1 (Email) |
Multiple paid accounts available |
|
|
Free |
30 minutes |
3 (Email) |
Paid accounts with 1 minute check interval |
|
|
Free |
30 Minutes |
1 (Email) |
Paid accounts with 5 minutes check |
|
|
Free |
* |
Unlimited (Email) |
||
|
Free |
60 minutes |
1 (Email) |
||
|
Free |
60 minutes |
1 (Email) |
||
|
Free |
60 Minutes |
2 (Email) |
Paid accounts have 1 minute check interval |
* There is no mention of check interval on the site.
We have tested most of them on the list and found that Pingdom is the real leader when it comes to monitoring. With their free account and 1 minute check interval, you get the notification instantly. The uptime notifications are also fastest from Pingdom. Overall, if you have only one website to monitor, Pingdom is the best.

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