The Firefox version 22 have the default allow 3rd party cookies no longer be accepted. This leads to problems in certain circumstances.
What are 3rd party cookies?
3rd party cookies (third party cookies) are cookies that are set when you visit a website and are not from the domain of the website itself. Example: user visits www.seite-A.de. On this page a banner is linked to the domain www.seite-B.de has. Want these banners set a cookie so it is a 3rd party cookie because he is not from the same domain as the domain of the visited website.
What does the blocking of 3rd party cookies?
Cookies are blocked, certain data can no longer be traced. So cookies are used for instance for tracking or retargeting to store necessary information in it. Particularly affected are:
- Tracking (especially post-view tracking)
- User-specific cookies
To a lesser extent also affected but intercepted by other mechanisms are also:
- Frequency capping
- mutual exclusion campaign
- Post-Action Exclusions
- Post-Click Exclusions
How does AdSpirit with it?
AdSpirit already used in addition to cookies so-called fingerprinting for years. Ie it will be clearly identified on the basis of other factors tried a user and it is to not rely solely on a cookie. AdSpirit is thus to be able to recognize the user again without existing cookie.
Disadvantages / limitations of fingerprinting
Fingerprinting is just due to some circumstances not 100%. The accuracy also decreases greatly after 24 hours. This results in the problem that services that rely on data with decreasing accuracy no longer have access to this data in part. Result could be that fewer actions are counted as actually generated or that users (because the users have not been recognized again by AdServer) no retargeting get displayed even though they have previously visited the shop.
By the way ...
Post click tracking is not affected by the 3rd party cookie problem because the user is directed when clicking on a banner above the "Website" the ad server and thereby receives a 1st party cookie (first party cookie) that currently all browsers is accepted.