Open-Cookie-Database

The Open Cookie Database is an effort to describe and categorise all major cookies. All cookie descriptions are saved in a downloadable CSV file. All contributions to the CSV file are welcomed.

How to contribute

All contributions are gratefully received. To contribute to the Open Cookie Database, please follow these steps:

1. Fork the repository
2. Add your cookie to the open-cookie-database.csv file. Please make sure the information is as accurate and complete as possible.
3. For the ID column, we use randomly generated UUIDs. You can generate a random UUID using any library or online tool.
4. Commit your changes
5. Submit a pull request

Category Descriptions

The definitions of the categories are as follows:

• Functional (also known as technical, essential or strictly necessary)
• Preferences (also known as functionality)
• Analytics (also known as performance or statistics)
• Marketing (also known as tracking or social media)

Wildcard match

The last column in the database is called "Wildcard match". A 0 in this column means that the cookie name is not a wildcard, and a 1 means that the cookie name is a wildcard.

Where a cookie name is not a wildcard, it means that the cookie name is a fixed string. For example, the cookie name _ga will always be _ga when set by Google Analytics.

However, if a cookie name is a wildcard, it means the exact cookie name may change from one website to another. Thankfully, the cookie name will always match a certain pattern. For example, the cookie _gac_1234 is a wildcard cookie name, because the 1234 part of the cookie name can be any string.