Website yellowpencil.com

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.

Show you how visitors are really using your website, collect feedback and turn more visitors into customers.

Website hosted on Google Cloud Platform.

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.

Transactional and marketing email delivery system.

Mandrill is a scalable and affordable email infrastructure service, with all the marketing-friendly analytics tools you've come to expect

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.

Websites with links to podcasts hosted on BuzzSprout

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.

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.

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".

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.