Experiment Teardown - Adding the Full Site Header to a Product Landing Page Increased Revenue by 12.2%

A continuing-education site for healthcare professionals was driving email campaign traffic directly to dedicated product landing pages with zero navigation options - no header, no search, no way out. Those landing pages were essentially a dead end - if visitors didn’t find what they were looking for on them, they didn’t have an easy way to explore the rest of the site.

The proposed experiment asked a fundamental conversion question: Does adding a full site header save lost intent by giving cold visitors a path into the rest of the catalog, or does it just defocus visitors from the content on the landing page?

Hypothesis: If a landing page carries the full site header, visitors who are not ready to buy that specific course can use search and navigation to find one they are interested in.

What we A/B tested: 

The impact:

1. +16.5% use of the search bar
2. +13.2% purchase conversion
3. +12.2% revenue per visitor

Takeaways:

• Question the “no-header” playbook for campaign traffic. Stripping navigation can help focus visitors on one offer, but when campaign traffic lands on a specific product, removing navigation can also push visitors to leave if that product isn't the right fit.

• Navigation isn't a leak when it matches visitor intent. These visitors were still evaluating, so search, category links, and account access gave them ways to keep exploring. The right page structure depends on what visitors are trying to do.
• An escape route can create revenue, not just reduce exits. The concern with adding navigation is that it will distract visitors from the main offer. Here, it did the opposite: more visitors purchased, while order value stayed essentially flat. Giving visitors a path into the catalog turned potential exits into additional sales.