Google Website Optimizer v 1.0 The Techie Guide Manuale Utente Scaricare il pdf (Pagina 3)

The Techie Guide to Google Website Optimizer

Forward

Welcome to The Techie Guide for Google Website Optimizer™ (GWO) This guide will help youintegrate GWO

into any website and test almost anything.

You’ll ﬁnd detailed technical information on what GWO does and how it works.We’ll cover integration issues

(“Where exactly do I put the GWO code?”) and setup issues (“How do I create an experiment using a non-

standard setup?”). We’ll show you how to launch simple experiments and full-on hairy scenarios.

We’ll also look behind the scenes at anexperiment in operation. You’ll see how theelements you install

actually work when the experiment is launched.

By the end of this guide you should have enough information so that the only thing limiting your testing is

your imagination.

Prerequisites

This is a technical guide. We assume that you, dear reader:

• Know how to edit HTML ﬁles

• Have a basic understanding of JavaScript

• Understand how cookies work

The more advanced stuff also requires experience with server side programming like PHP or ASP.

When giving examples, we’ll refer to the site you’re testing as www.mysite.com.

We may, at whim, abbreviate Google Website Optimizer as GWO and Google Analytics as GA. We will also, at

times, abbreviate multivariate testing as MVT and A/B testing as simply A/B.

Future Compatibility

Though this guide provides “inside” information on how GWO works, Website Optimizer is an evolving

product. Information in this document may become stale in the future, and experiment designs using this

information may not work as intended after some future date. This does not mean that certain types of

experiments will become impossible in the future, only that some assumptions will no longer hold true, and

that there will be different ways to achieve the same ends.

We should emphasize here that deviating from the “out of the box” methods for creating experiments should

always involve testing a technique and previewing pages to ensure a good user experience.

Updates and Revisions

The Techie Guide is a living document. We intend to update both it and GWO with the latest tricks from our

engineers and the Website Optimizer community. You can always ﬁnd the latest version of the Techie Guide

at www.google.com/websiteoptimizer/techieguide.

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