Analytics
Plausible is a lightweight and open source Google Analytics alternative Your website data is 100 yours and the privacy of your visitors is respected

JavaScript libraries
Polyfill io is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browser

Ecommerce
The World Wide Web Consortium W3C develops standards and guidelines to help everyone build a web based on the principles of accessibility internationalization privacy and security

JavaScript libraries
Just what the world needs another jQuery slider YAWN I know check this one out though it s got lots of cool features