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

Information Technology

Google

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.

Meta Tags

Theme Color Tag

Websites Using Theme Color 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.

Favicon Tag

Websites Using Favicon Tag

Wesites using favicon rel tag

Meta Keywords

Websites Using Meta Keywords

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 Robot

Websites Using Meta Robot

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

Meta Description

Websites Using Meta Description

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.

Canonical Tag