Monitor your websites, REST APIs, DNS and mail servers and be the first to know when your service is down. Webmon website monitoring features allows you to look for string matches in response body, compare HTTP response codes, append additional headers, authenticate, POST, PUT, GET, DELETE and more, giving you all the flexiblity you need to monitor your websites and APIs.
Very happy with the monitoring we have set up via http://webmon.com , highly recommend this service.
Webmon never failed me once. Well done!
Anyone who's serious about running a website should consider using Webmon.