With the URL that I want to check, I entered:
In Firefox, nothing came up. In IE, the current date / time came up. I tested this on a web page that I knew was updated a month ago, so I know this is not correct.
In Firefox, I went to Information - Page Information. The date that was in the Modified was Sunday, August 26, 20.12 08:05:26. Closing that box and hitting reload, the time was updated to the current time.
I don't know think that Google Analytics would matter - I checked a page that did not have this.
The pages are .jsp and .asp - I don't know if that matters (since the page is be created at the time it is created on the server)?