The piwik page say:
[piwik.org]
"If a visitor comes to your website for the first time, or if he visits a page (or downloads a file) more than 30 minutes after his last page view, this will be recorded as a new visit. A Unique Visitor can make multiple Visits per day."
But the tests that I ran through Piwik showed me that after 30 minutes I should be considdered a new visitor but I still saw the same number and it did not look as if I tracked in piwik.
[piwik.org]
"If a visitor comes to your website for the first time, or if he visits a page (or downloads a file) more than 30 minutes after his last page view, this will be recorded as a new visit. A Unique Visitor can make multiple Visits per day."
But the tests that I ran through Piwik showed me that after 30 minutes I should be considdered a new visitor but I still saw the same number and it did not look as if I tracked in piwik.