Publisher Common ID (PubCID) is a privacy centric first party cookie solution. Built with consumer privacy in mind. PubCID does not sync IDs across domains so the IDs your domain generates are yours to share with whom you choose. Because the user IDs generated are site specific, there is no degradation of these IDs over time, improving user match rates. Additionally, latency issues generally caused by multiple call outs to various parties are significantly reduced, improving user experience, viewability and earnings.
Publishers that have implemented PubCID have seen an immediate lift in earnings and improvement in user interaction on their domain. This solution is open source, free to use, and does not require any consortium memberships.
A new rest endpoint is added that returns a 1×1 pixel and to update the cookie. The URL is ‘/wp-json/pubcid/v1/extend/’. The trailing slash is required. This allows caching to be used as long as the endpoint itself is excluded.
Working with Prebid
Requires Prebid.js User Id modules with pubCommonId. Set params.pixelUrl to ‘/wp-json/pubcid/v1/extend/’.
Generating ID Directly
The PubCID plugin can be configured to generate IDs directly from your domain by setting the Consent Function and the Generate Function in the settings of the page as outlined below.
Generate Function – Specify wp_generate_uuid4, this will return a random UUID.
- Upload the plugin files to
/wp-content/plugin/pubcid-extenderdirectory, or click on install now.
- Activate the plugin from the WordPress Plugins page
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Contributors & Developers
“Publisher Common ID” is open source software. The following people have contributed to this plugin.Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
- Initial release