Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Envoy is an open-source edge and service proxy, designed for cloud-native applications.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Next.js is a React framework for developing single page Javascript applications.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.