Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
nopCommerce is an open-source ecommerce solution based on Microsoft's ASP.NET Core framework and MS SQL Server 2012 (or higher) backend database.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.