How does one get a measure of a websites uptime over a period of time? Is there a way to do this “historically”? I have Google Analytics and Webmaster Tools installed.
And I notice that these types of apps allow you to monitor your site’s uptime:
but if you have to install them and then they monitor it.
Is there a way to go back and check? Or do you have to have installed something that monitors it in the first place?