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...

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Blogging Standards

RSS

Websites Using RSS

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

Really Simple Discovery

Websites Using Really Simple Discovery

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

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.

X-UA-Compatible

Websites Using X-UA-Compatible

Allows a website to define how a page is rendered in Internet Explorer 8, allowing a website to decide to use IE7 style rendering over IE8 rendering.

Meta Tags

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.

Canonical Tag

Websites Using Canonical Tag

A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".

Meta Rel Home

Websites Using Meta Rel Home

By adding rel="home" to a hyperlink, a page indicates that the destination of that hyperlink is the homepage of the site in which the current page appears.

Meta http-equiv

Websites Using Meta http-equiv

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.