Technologies in use by

Websites that accepts payments with American Express.

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

Mandrill is a scalable and affordable email infrastructure service, with all the marketing-friendly analytics tools you've come to expect

The DOCTYPE is a required preamble for HTML5 websites.

Content Security Policy is best used as defense-in-depth, to reduce the harm caused by content injection attacks.

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.

Meta descriptions are HTML attributes that provide concise explanations of the contents of web pages. Meta descriptions are commonly used on search engine result pages (SERPs) to display preview snippets for a given page.

Wesites using favicon rel tag

The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.

Meta Keywords are a specific type of meta tag that appear in the HTML code of a Web page and help tell search engines what the topic of the page is.