In normal operating conditions, the test mode must be set to 'No'. 123Stat will then count one new visit every time someone starts a new browser session on your site.
If a visitor comes to your site for the very first time a new 'visitor session' is detected. The counter increments by one, and so do the total and first time traffic reports.
If that same visitor reloads your page or leaves your site and comes back within less than 30 minutes, we consider that we are still in the same 'visitor session' and do not increment the counter or the stats again.
If the visitor leaves your site and comes back after more than 30 minutes, we have a new 'visitor session'. We also record the fact that this particular visitor has been to your site before. The counter increments by one, and so do the total and repeat traffic reports.
The monitoring of 'visitor sessions' gives you a very accurate picture of your site's traffic, as opposed to a simple counter which would increment indiscriminately whenever your site is loaded.
Test modeIf you just installed the 123Stat code on your site, you may want to verify that visitors are being recorded properly (and that the counter increments if you made it visible). The regular 'visitors sessions' setting makes this a bit difficult because after detecting your first visit to your site your stats will not show subsequent visits by yourself unless you wait 30 minutes or more to load you page again - that's because 123Stat considers that your multiple visits within a 30-minutes period are all part of the same 'visitor session'.
The solution is simple : set the 'Test Mode' to 'Yes' and every single loading of the page on which you installed the 123Stat code will be considered a new 'visitor session'. As a result if you load your page and then reload it 4 times you'll see the counter going to 1, 2, 3, 4 and 5, and when checking your stats you will see your own visits recorded 5 times, as if 5 visitors came to your site.
After testing your account make sure that you turn the test mode to 'No' otherwise your stats will be inaccurate