Website stampcircuit.com

AdSense is an ad serving application run by Google. Website owners can enroll in the program to enable text, image, and, more recently, video advertisements on their websites. These advertisements are administered by Google and generate revenue on either a per-click or per-impression basis. Google not only offers AdSense for ...

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.

New Relic offers SaaS Application Performance Management and Real User Monitoring for Cloud and Data Center deployed web applications implemented in Ruby, Java, .NET or PHP.

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

Websites using some form of Captcha technology on them.

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 this British currency.

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

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

Namecheap DNS services

Varnish is an HTTP accelerator designed for content-heavy dynamic web sites. In contrast to other web accelerators, such as Squid, which began life as a client-side cache, or Apache and nginx, which are primarily origin servers, Varnish was designed as an HTTP accelerator. Varnish is focused exclusively on HTTP, unlike other pro...

Pantheon hosts Drupal and Wordpress sites, while also delivering staging environments, backups, workflow, a global CDN and HTTPS.

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

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

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 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.

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".

Wesites using favicon rel tag

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

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

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