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Added Stripe
Anti-bot CAPTCHA widget that helps digitize books by providing snippets of books for people to enter the text for. Owned by Google.
Websites using some form of Captcha technology on them.
The Tweet Button is a small widget which allows visitors to share content and connect on Twitter.
Sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node.
jQuery UI is a curated set of user interface interactions, effects, widgets, and themes built on top of the jQuery JavaScript Library. Whether you're building highly interactive web applications or you just need to add a date picker to a form control.
Sift Science monitors a site's traffic in real time and alerts you instantly to fraudulent activity.
This site uses the viewport meta tag which means the content may be optimized for mobile content.
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 ...
Stripe is a developer-friendly way to accept payments online and in mobile apps.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
Since its creation in 2000, phpBB has become the most widely used Open Source forum solution.
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.
Content Security Policy is best used as defense-in-depth, to reduce the harm caused by content injection attacks.
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.
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.
Sites who has this tag are verfied by google to use WebMaster tools
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.
A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.