Technologies in use by

Websites that accepts payments with American Express.

Subscription billing and recurring billing management. Recurly offers enterprise-class subscription billing for thousands of companies worldwide.

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.

Amazon Route 53 is a highly available and scalable Domain Name System (DNS) web service.

Google Apps is a cloud-based productivity suite that helps you and your team connect and get work done from anywhere on any device. It's simple to setup, use and manage, allowing you to work smarter and focus on what really matters.

The DOCTYPE is a required preamble for HTML5 websites.

Allows a website to define how a page is rendered in Internet Explorer 8, allowing a website to decide to use IE7 style rendering over IE8 rendering.

Websites using https protocol.

UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.

Google's hosted library for web fonts. Allows websites to choose and use fonts from a free, wide variety of fonts.