Apache is a free and open-source cross-platform web server software.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Datadog is a SaaS-based monitoring and analytics platform for large-scale applications and infrastructure.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Modernizr is a JavaScript library that detects the features available in a user's browser.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Snowplow is an open-source behavioral data management platform for businesses.
A modest JavaScript framework for the HTML you already have.