HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
nopCommerce is an open-source ecommerce solution based on Microsoft's ASP.NET Core framework and MS SQL Server 2012 (or higher) backend database.
Open Graph is a protocol that is used to integrate any web page into the social graph.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.