fr on www.ncirl.ie
About this cookie:
Contains browser and user unique ID combination, used for targeted advertising.
About this cookie’s host: This domain is owned by Facebook, which is the world's largest social networking service. As a third party host provider, it mostly collects data on the interests of users via widgets such as the 'Like' button found on many websites. This is used to serve targeted advertising to its users when logged into its services. In 2014 it also started serving up behaviourally targeted advertising on other websites, similar to most dedicated online marketing companies.
Related general information about fr:
These cookies are used to deliver adverts more relevant to you and your interests. They are also used to limit the number of times you see an advertisement as well as help measure the effectiveness of the advertising campaign. They are usually placed by advertising networks with the website operator's permission. They remember that you have visited a website and this information is shared with other organisations such as advertisers. Quite often targeting or advertising cookies will be linked to site functionality provided by the other organisation.More about cookie classifications.
Third Party Cookies
If the host domain for a cookie is different to the one in the browser bar when it was downloaded, then it is a third party cookie.
They are usually placed in a website via scripts or tags added into the web page. Sometimes these scripts will also bring additional functionality to the site, such as enabling content to be shared via social networks.
For example, if you visit a site that has a YouTube video in one of its pages. This has been included by the website owner, using a piece of code provided by YouTube. YouTube will then be able to set cookies through this code, and know that you have watched that video, or even just visited the page the video is in.
Online advertising is the most common use of third party cookies. By adding their tags to a page, which may or may not display adverts, advertisers can track a user (or their device) across many of the websites they visit.
This allows them to build up a 'behavioural profile' of the user, which can then be used to target them with online ads based around their 'calculated' interests.
Analytics cookies are probably the most common form of persistent cookies in use today.
Secure cookies are only transmitted via HTTPS - which you will typically find in the checkout pages of online shopping sites.
This ensures that any data in the cookie will be encrypted as it passes between the website and the browser. As you might imagine – cookies that are used by e-commerce sites to remember credit card details, or manage the transaction process in some way, would normally be secure, but any other cookie might also be made secure.
This protects it from so-called cross-site-scripting (XSS) attacks, where a malicious script tries to send the content of a cookie to a third party website.