Receive alerts when your site is down, 50% discount
Pingdom has been running a time-limited 50% discount for a few days. The offer ends on Tuesday (8 a.m. US EST, 2 p.m. CET (Europe)).
A 50% discount means that you pay less than $5 per month for the ability to monitor five sites or servers, receive SMS or email alerts to one or more contact persons, view statistics about response time and uptime from multiple check locations, etc.
Note that the offer is for the initial charge, so if you select to pay monthly, only the first month will be discounted. If you pay for a year, you get 50% off on that entire amount (a $60 saving).