An HTTP cookie is a piece of data stored by the user's web browser. Unless otherwise specified, cookies can be created, read, modified and deleted and modified both by JavaScript and from server-side scripts by reading the headers.

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14
votes
5answers
3k views

Google Analytics and the EU cookie directive. Who will fall foul of the law? Google or the developer?

So Google uses cookies when performing its usual duties of tracking users on a website. That is just it though; Google are setting the cookies and not your website as such. This is by virtue of the ...
10
votes
5answers
2k views

Does the EU cookie law apply to an EU site that is hosted outside of the EU?

I have been reading up about this EU cookie law, and have also had in depth conversations with my girlfriend who is a solicitor/lawyer and with colleagues while building websites. While we are now ...
10
votes
2answers
538 views

How many domains to split components across?

I understand how splitting components across domains can maximize parallel downloads, and enable you to have cookie-free static content domains, but since there's a time cost for each domain lookup ...
11
votes
1answer
801 views

Do many users turn off cookies?

Just how generally prevalent is it that users have cookies disabled in their browsers? I want to set a cookie during a user's session so that all the pages know that the presence of a particular ...
4
votes
2answers
134 views

Is it possible to track URL parameters and then the value of a cookie?

I have recently launched a site for a customer which we would like to track initial visits on URLs like below via Google Analytics, and then track revisits on their respective referral code: Users ...
3
votes
1answer
121 views

What is the percentage of users that block cookies in their web browser?

What is the percentage of web users that use either cookie blocking software for their web browsers or software that blocks Google Analytics tracking?
2
votes
1answer
3k views

What does the Quantcast __qca cookie do?

I'm reviewing the cookies served up from my website and one of them is a first-party cookie __qca which seems to be set by Quantcast. I'm sure this is just used for tracking, but I can't find this ...
1
vote
1answer
114 views

How to read user unique code from _ga cookie?

Currently I am facing the problem that have been discussed already here: How to keep track of a unique and an existing visitor (keep track about unique user without registration etc.). The most ...
1
vote
2answers
257 views

Can search engines change language and read the cookie?

I am building a multi language website in PHP and prepared all my strings in English by default using gettext() My locale/it_IT/LC_MESSAGES/default.mo file is working correctly and now I need to sort ...
0
votes
1answer
749 views

What are these cookies for: __switchTo5x, __unam, __qca?

I tested on my local Mac's (OS X 10.6.8) Apache. Just now, I did a print_r($_SERVER) from a PHP script, and it shows these three cookies. What is that all about? I didn't set them. Is this something ...