Amazon Pay is an online payments processing service that is owned by Amazon. It lets you use the payment methods associated with your Amazon account to make payments for goods and services.
American Express, also known as Amex, facilitates electronic funds transfers throughout the world, most commonly through branded credit cards, debit cards and prepaid cards.
Apple Pay is a mobile payment and digital wallet service by Apple that allows users to make payments in person, in iOS apps, and on the web.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Google Pay is a digital wallet platform and online payment system developed by Google to power in-app and tap-to-pay purchases on mobile devices, enabling users to make payments with Android phones, tablets or watches.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
MasterCard facilitates electronic funds transfers throughout the world, most commonly through branded credit cards, debit cards and prepaid cards.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
Vercel is a cloud platform for static frontends and serverless functions.