User's guide for Unicorn

Quick Start

Just type (or Cut&Paste) the URL for the page you want to validate into the text field on the form and press the "Check" button.

If you have a local file you want to validate, choose the "File Upload" link from the navigation menu. Select the button labeled "Browse..." (or something like that, depending on your browser) and choose the file you want to upload in the usual manner for your OS.

Alternatively, you can also copy and paste the complete content of a document in the "Direct Input" box.

Introduction

Unicorn is W3C's unified validator, which helps people improve the quality of their Web pages by performing a variety of @@checks@@. Unicorn gathers the results of the popular HTML and CSS validators, as well as other useful services.

When you send a document to Unicorn, it will fetch that URL and dispatch it to several validators, depending on the task you selected.

Tasks

To check a document, it is necessary to select a task. A task is a set of validations that are going to be performed depending on the type of the submitted document and results from other validations withing this same task. Each task may also have basic and advanced options to tune a little bit its behaviour.