User guide
22
The Techie Guide to Google Website Optimizer
Experiments with Dynamic Content
3. The visitor will immediately be redirected toproduct.php?pid=123&variation=b
4. The pageproduct.php?pid=123&variation=b loads
5. The GWO display code will NOT be included
6. dynamic_include_b.php will be included
When setting up this experiment, you’d use these URLs:
• Original: http://ww w.mysite.com/product.php
• Test Variation B:http://ww w.mysite.com/product.php?variation=b
• Test Variation C: http://ww w.mysite.com/product.php?variation=c
If your product.php page returns an error when no product id is passed in, simply use the offline validation.
Let’s say you set up an A/B experiment with these values:
• Original page: http://ww w.mysite.com/page.php
• Test Variation B: http://ww w.mysite.com/page.php?track=456&variation=b
• Test Variation C: http://ww w.mysite.com/page.php?track=789&variation=c
A visitor reaches the page for the first time using this URL:
http://ww w.mysite.com/page.php?track=123&productID=72
GWO rolls the dice and chooses to redirect the visitor to the URL for variation B.
Since both the current URL and the test page URL have the track parameter, the visitor will be redirected to
this URL: http://ww w.mysite.com/page.php?track=456&productID=72&variation=b
Point to remember
Technically, GWO does notappendthe parameters from the original page to the test page. Itmergesthe
parameters from the two URLs. GWO will favor the parameter values from the URLsfor the alternative
test pagesentered during the experiment setup.