I’ve been using this for several servers for about 18 months now. Very reliable. They recently launched a nice redesign. Love that it’s mobile only (except the helpful weekly summary report emails).
Just wanted to introduce myself, I am one of the founders of Vigil. Vigil is an easy to use but very powerful app for monitoring the health of your website. Vigil will send you push and email notifications as well as detailed info about our response time and which part may be slowing you down. The Vigil team is dedicated to making sure that you are the first to know about your site being down. Any questions or feedback are greatly appreciated. Stay Vigilant!
We are very excited to be a part of the Product Hunt community! As a thank you we are offering one free month of service when you purchase a subscription. Just enter "producthunt" as your referral code when you sign up before Jan 31st, 2015. If you have already set up your account today (or forget to add the referral code), under settings use the "Send Feedback" button to request we add the referral to your account.
A couple commentators mentioned that Vigil is mobile-only. The Vigil team is committed to the mobile platform, but there are times when your phone might not be handy so we've been working on a Vigil web client that allows you to access your site statistics. We expect to have it ready in January 2015.
Framer
Summit Day Planner
Vigil
Product Hunt