The Information Commissioner's Office (ICO) has said that anyone who visits its website from "the end of January" will receive cookies. It said individuals will be given "clear, detailed information" about what cookies have been set and will also be given access to an "easy way to remove them" if they do not want them set on their machines or devices.
The ICO said its change in policy was "consistent" with guidance it has issued on obtaining "implied consent" to cookies. It said the purpose of its change in policy was to enable it to "collect reliable information to make our website better".UK's ICO Changes Cookie Law Policy To Implied Consent [out-law.com]
I assume you mean GA.
Some cookies can be exempted from informed consent under certain conditions if they are not used for additional purposes. These cookies include cookies used to keep track of a user’s input when filling online forms or as a shopping card, also known as session-id cookies, multimedia player session cookies and user interface customisation cookies, eg language preference cookies to remember the language selected by the user.
If you have cookies turned off, how can cookies track you? They have to read existing cookies to know where you've been.
Does piwik (company) collect data from the analysers installed on sites?
aa.bb.cc.dd - - [07/Mar/2013:15:35:05 -0800] "GET /fun/panda.html HTTP/1.1" 200 6982 "http://www.webmasterworld.com/profilev4.cgi?action=view&member=lucy24" "{user agent}"
aa.bb.cc.dd - - [07/Mar/2013:15:35:05 -0800] "GET /piwik/piwik.js HTTP/1.1" 200 21865 "http://www.example.com/fun/panda.html" "{user agent}"
{all subsidiary files here}
aa.bb.cc.dd - - [07/Mar/2013:15:35:07 -0800] "GET /piwik/piwik.php?action_name=The%20Panda%20Page&idsite=1&rec=1&r=215035&h=10&m=35&s=6&url=http%3A%2F%2Fwww.example.com%2Ffun%2Fpanda.html&urlref=http%3A%2F%2Fwww.webmasterworld.com%2Fprofilev4.cgi%3Faction%3Dview%26member%3Dlucy24&_id=16955bde49cf4769&_idts=1362699307&_idvc=1&_idn=1&_refts=1362699307&_viewts=1362699307&_ref=http%3A%2F%2Fwww.webmasterworld.com%2Fprofilev4.cgi%3Faction%3Dview%26member%3Dlucy24&pdf=0&qt=1&realp=1&wma=0&dir=0&fla=1&java=1&gears=0&ag=0&cookie=1&res=1440x900 HTTP/1.1" 200 361 "http://www.example.com/fun/panda.html" "{user agent}" GET /piwik/piwik.php?idsite=1 [edited by: tedster at 4:50 am (utc) on Mar 16, 2013]
[edit reason] switched real domain to example.com [/edit]
The img, in that context, seems superfluous since it is only going to show what page is visited, which the logs already know.
I suppose you usually get naive users