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DoubleClick Advertisers.

Facebook Ads Advertisers.

Linkedin Advertisers, websites using Linkedin Conversion Tracking.

Facebook Retargeting Pixel

DoubleClick is a provider of digital marketing technology and services. Companies come to DoubleClick for expertise in ad serving, media, video, search and affiliate marketing to help them make the most of the digital medium.

Hubspot provides marketing information and leads via inbounding marketing software.

Personalized recommendation engine for eCommerce websites

Visitor identification service from Czech Republic.

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

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

Transactional and marketing email delivery system.

transforming email into a powerful marketing channel for businesses, entrepreneurs and agencies across the globe

Marketing automation, email marketing and behavioral analysis.

Previously Google Apps for Business. G Suite is a cloud-based productivity suite that helps you and your team connect and get work done from anywhere on any device. It's simple to setup, use and manage, allowing you to work smarter and focus on what really matters.

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

LiteSpeed web server is a light-weight server which conserves resources without sacrificing performance, security, compatibility, or convenience. It is capable of handling multiple concurrent clients with minimal memory consumption and CPU usage.

Really Simple Discovery is a way to help client software find the services needed to read, edit, or "work with" weblogging software.

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

Open graph locale entity tag

Open graph url entity tag

Open graph description entity tag

Open graph type 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

Open graph image entity tag

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

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.

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".

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

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.