Monitors your websites every 5 minutes, totally free.

Since the beginning, Uptime Robot was supporting URLs with SSL certificates (https).

However, self-signed certificates (the ones with unknown CAs) were not supported as they were generating errors like "unknown certificate", etc. and Uptime Robot was considering these websites to be down.

Today, URLs with self-signed certificates are now supported just like any other URL (as you already know the certificate is self-signed and no need to throw alerts).

On the other hand, for any type of https URLs, if the certificate is an invalid one (like the common name and URL not matching) or the date is expired, Uptime Robot will keep sending a down alert.

Lately, we have added "custom timezones" to Uptime Robot where users can select their timezone to view any report in their own date and time.

You may be willing to add something similar to your own application as well and it takes some time to find the values for timezones or cities and countries they cover.

As we already have it, want to share the data (something simple but can save time):

Download the timezones database in .SQL format.

Since the launch of Uptime Robot, we're analyzing the cost of keeping logs in means of performance and size.

With lots of tweaks to our engine and code, Uptime Robot now saves every action to present them as reports and charts.

The first report activated is the "Last 24 Hours Status" which can be found in the "My Monitors" page like below:

The report displays the events (up/down/paused) within a timeline and it is interactive. You can hover any event to find out the details about it.

In order to view the dates and times in your own timezone, we have added a "timezone" field inside the "My Settings" page which you can select your own and the report (+ all feature reports) will be displayed with that timezone.

P.S. The report tooltips are a little buggy in IE (working on a fix) but they work nice in all other browsers.

Few weeks ago, Twitter approved our request for getting whitelisted to use their API, so we wouldn't be limited with the standard daily API usage limits.

And, we just activated the Twitter integration for getting the up/down alerts via Twitter DMs (direct messages).

The usage is very simple:

• Follow @uptimerobot Twitter user (so, it can send DMs)
• Go to "My Settings" page
• Under "Add Alert Contacts", click Twitter
• Enter your Twitter user (without @)
• Activate this alert contact by pressing the "play button" inside the table listing your alert contacts

That's it. You'll now be receiving up and down alerts via Twitter.

This is the first post of the Uptime Robot Blog and hi to everyone .

Since the launch of the project (20 Jan 2010), we worked hard to make the system better and there has been several updates to it:

New Features:

• Keyword checking (ability to check if a keyword exists or not in a webpage)
• RSS alerts (get the alerts via RSS)

Improvements:

This is the biggest part that we have worked on.

We weren't expecting such an interest on Uptime Robot as the system had few hundred users just in the first day.

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