Technologies in use by squareup.com

JavaScript

Modernizr

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser and allows you to target specific browser functionality in your stylesheet.

jQuery

jQuery: The Write Less, Do More, JavaScript Library.

Email Hosting Provider

Google Apps for Business

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.

Nameserver

DNS Made Easy

DNS Made Easy offers enterprise managed DNS and geographical load balancing services on a global IP Anycast DNS network with a 100% uptime guarantee.

Document Standard

Content Security Policy

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

Encoding

UTF-8

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

Canonical Links

A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".

Meta Viewport

This site uses the viewport meta tag which means the content may be optimized for mobile content.

Meta http-equiv

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.