Google APIs are application programming interfaces developed by Google which allow communication with Google Services and their integration to other services.

Mobile

Apple Mobile Tags

Websites Using Apple Mobile Tags

iOS Safari instructions for mobile web apps

Email Services

Transactional Emails

Sendgrid

Websites Using Sendgrid

Transactional and marketing email delivery system.

Server

Web Hosting

Amazon Hosting

Websites Using Amazon Hosting

Amazon hosting services.

Payment & Currencies

Payment Currency

Euro

Websites Using Euro

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

Document Standard

HTTPS

Websites Using HTTPS

Websites using https protocol.

HTML5 DocType

Websites Using HTML5 DocType

The DOCTYPE is a required preamble for HTML5 websites.

Open Graph Tags

OpenGraph Type Entity

Websites Using OpenGraph Type Entity

Open graph type entity tag

Open Graph Protocol

Websites Using Open Graph Protocol

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

Fonts

Google Web Fonts

Websites Using Google Web Fonts

Google's hosted library for web fonts. Allows websites to choose and use fonts from a free, wide variety of fonts.

Typekit

Websites Using Typekit

Typekit is the easiest way to use real fonts on the web. It's a subscription-based service for linking to high-quality Open Type fonts from some of the worlds best type foundries.