cdnjs is a free distributed JS library delivery service.
Emotion is a library designed for writing CSS styles with JavaScript.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
JivoChat is a live chat solution for websites offering customizable web and mobile chat widgets.
Vercel is a cloud platform for static frontends and serverless functions.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.