Jun 14, 2018

Third-party JavaScript often refers to scripts that can be embedded into any site directly from a third-party vendor.

Third-party JavaScript can include ads, analytics, widgets and other scripts that make the web more dynamic and interactive.

Examples of third-party scripts include:

Social sharing buttons (e.g Twitter, Facebook, G+)

Video player embeds (e.g YouTube, Vimeo)

Advertising iframes

Analytics & metrics scripts

A/B testing scripts for experiments

Helper libraries (e.g date formatting, animation, functional libraries etc)