# Surfacing a comparison module for returning visitors who viewed a product

Asked by Joel Andersson on 2026-07-08. Tags: shopify, hydrogen, personalization, audiences.

Our shoppers research for days before buying. The funnel step I am targeting is
the return visit: someone viewed a product page, left, and comes back to the
home page later in the week.

For those visitors I want to show a spec-comparison module on the home page
instead of the generic hero.

How do I express that audience? Specifically the combination of "is a returning
visitor" and "has viewed a product page before".

## 1 answer

### Answer from stefan_b (2026-07-08)

Both halves of your audience are built-in conditions, so this is a dashboard
exercise.

The returning part is literally `user is returning`. The page-history part
uses the viewed-page condition, for example:

```cql
user is returning and user has viewed a page with path "/products/nova-x2"
```

Adapt the path to your product routes, or use `matches` for a pattern that
covers the whole catalog section you care about.

You do not need any custom tracking for the signal: product views are
auto-tracked by the Hydrogen SDK, so the browsing history is already on the
profile.

For the module itself, map it to a slot and fetch it in the home route loader.
Since the audience is evaluated when the loader resolves the slot, returning
visitors get the comparison module in the server-rendered HTML on first paint,
not swapped in afterwards.