Overview
Meta's JavaScript SDK for embedding social plugins (Like buttons, Share buttons, Login, Comments, embedded posts) on third-party websites. Distinct from the Meta Pixel - this SDK provides social interaction features rather than conversion tracking. The CJEU Fashion ID ruling (C-40/17) established that website operators embedding Facebook Social Plugins are joint controllers with Meta for the collection and transmission of personal data triggered by the plugin.
Detection capabilities
- Signature count
- 2
- Detection methods
- network
- Property types
- hostnamepathname
Performance impact
Performance Impact
- Script size
- 180 KB
- Requests per page
- 2
Common mistakes
- 1Loading the SDK without consent - the CJEU Fashion ID ruling (C-40/17) established that website operators are joint controllers with Facebook for the data collection triggered by embedding Social Plugins
- 2Using XFBML parsing on page load without gating behind consent - the SDK automatically sends user data to Meta when it initialises
- 3Not disclosing the joint controllership obligation in your privacy notice as required by Fashion ID (C-40/17)
- 4Embedding Like or Share buttons on pages with sensitive content (health, financial) without a DPIA
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