Website wdcs.org

Anti-bot CAPTCHA widget that helps digitize books by providing snippets of books for people to enter the text for. Owned by Google.

FancyBox is a tool for displaying images, html content and multi-media in a Mac-style "lightbox" that floats overtop of web page.

Google Tag Manager makes it easy for marketers to add and update website tags including analytics, remarketing, and more.

A rich hosted Exchange environment for every user without having to manage a server.

Track Your Results. Get the stats on your campaigns and subscribers, so you can improve your content every time you send, and tailor your newsletters to your ...

Website using the £ symbol on their website - meaning it may accept payment in this British currency.

PayPal is a American international e-commerce service that enables companies and individuals to send money and to accept payments without revealing any financial details.

iDEAL is a payment method made up of a collection of agreements and standards for an immediate online transfer from a purchaser’s bank account to the bank account of a webshop or organisation.

A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.

A pingback is one of four types of linkback methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to, or referring to their articles.

Website that accept bitcoin as payment method

Open graph locale entity tag

Open graph type entity tag

Open graph url entity tag

Open graph description entity tag

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

Open graph image entity tag

Open graph title entity tag

Open graph site name entity tag

This page contains a meta robots tag which tells search engines and robots to index or not index the page.

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.

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

Sites using Html 5 SVG Tag

A web page. Every web page is implicitly assumed to be declared to be of type WebPage, so the various properties about that webpage, such as breadcrumb may be used. We recommend explicit declaration if these properties are specified, but if they are found outside of an itemscope, they will be assumed to be about the page

A scheme.org entity that represents an organization such as a school, NGO, corporation, club, etc.

A scheme.org entity that represents a person (alive, dead, undead, or fictional).

A scheme.org entity that represents the most generic kind of creative work, including books, movies, photographs, software programs, etc.

A scheme.org entity that represents a blog post.

A scheme.org entity that represents a blog.

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