Recent Technology Changes in xtramath.org

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Technologies in use by xtramath.org

iOS Safari instructions for mobile web apps

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

Websites using Amazon technologies

Websites using Google technologies

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.

Ubuntu Linux operating system

Amazon Simple Email Service (Amazon SES) is a cost-effective outbound-only email-sending service built on the reliable and scalable infrastructure that Amazon.com has developed to serve its own customer base. With Amazon SES, you can send transactional email, marketing messages, or any other type of high-quality content and you ...

Previously Google Apps for Business. G Suite 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.

Wesites using favicon rel tag

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.

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.

The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook

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