Website olchc.ie

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

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

Inbound email scrutiny and data loss prevention services.

Amazon Route 53 is a highly available and scalable Domain Name System (DNS) web service.

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

Website using the € symbol on their website - meaning it may accept payment in Euros.

Websites that accepts payments with Visa.

Open graph type entity tag

Open graph description entity tag

Open graph url 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 site name entity tag

Chrome for Android, since version 39 supports the "theme-color" meta tag to allow websites control the background color of the tab's UI header.

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.

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

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