SDK web tracking

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Welcome note

Data hub is our new upgraded platform, which we rolled out in August 2025. It offers a single unified integration for passing your data through to your Bloomreach products.

You have access to Data hub if you've implemented with Bloomreach after August 2025.

Customers who have implemented before August 2025 should follow the existing documentation for Engagement, Discovery, and Clarity.

Tracking

The setup is similar to Engagement. Read more here: Tracking. See also the Event streams SDK integration pages.

Cookies

The setup is similar to Engagement. Read more here: Cookies & Storage.

Note the addition of Discovery cookies:

• _br_uid_2 Read more here: Cookie Parameter (_br_uid_2)
• _cdp_segments

New functionality

In addition to the existing Engagement JavaScript SDK, there is new functionality in the form of:

• Deferred events
• Metadata
• Backwards compatibility alias