crypto-js is a JavaScript library of crypto standards.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Next.js is a React framework for developing single page Javascript applications.
Sellix is an ecommerce payment processor. It accepts PayPal, PerfectMoney and popular cryptocurrencies.
Vercel is a cloud platform for static frontends and serverless functions.