Marketo Measure Cookies

Learn about the various Marketo Measure Cookies that are loaded onto your site when you apply the Marketo Measure JavaScript to your landing pages. This information may serve as useful for the web development team during implementation.

Cookie Name Cookie Type Purpose
_BUID Third party, saved on domain Universal user id to identity the same user across multiple clients’ domains.
_biz_uid First party User id on the current domain.
_biz_sid First party Session id of the user.
_biz_flagsA First party A single cookie that stores multiple information, such as whether or not the user has submitted a form, performed a crossdomain migration, sent a viewthrough pixel, opted out from tracking, etc.
_biz_nA First party Sequence number that Marketo Measure includes for all requests, for internal diagnostics purpose
_biz_dfsA First party Temporarily stores form submission data that happens before bizible.js receives a configuration JS to determine whether or not tracking form on HTTPS is enabled.
_biz_pendingA First party Temporarily stores analytics data that has not been successfully sent to Marketo Measure server yet.

If a Web Application Firewall (WAF) warning is triggered during the JavaScript setup, users can either disable that WAF rule or allow-list the cookies, as the below example:

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