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# Understand TWR's delivery methods

The delivery method defines how visitors reach your campaign's Safe Page or Offer Page on The White Rabbit (TWR) and, above all, whether the ad's URL changes in the browser. TWR Redirect and Pre Page take the visitor to the page's final URL; TWR Mirror and Unpack keep the ad's URL, without exposing the real domain. You choose one method for each page when setting up the campaign.

## The four methods

Each campaign page has its own delivery method. The main difference between them is whether the URL changes in the visitor's browser and whether your page's real domain is visible to anyone trying to spy on the campaign.

| Method | The URL in the browser | When to use |
| ---- | ---- | ---- |
| **TWR Redirect** | **Changes** — goes to the page's final URL; the real domain is visible | Standard method, compatible with any page. Works for most traffic sources |
| **Pre Page** | **Changes** — passes through a confirmation pre-page and goes to the final URL | Safe Page only. Improves the campaign's CPM metrics |
| **TWR Mirror** | **Doesn't change** — stays on the campaign URL; the real domain doesn't appear | Strongest protection against competitor spying |
| **Unpack** | **Doesn't change** — stays on the ad's URL; the real domain doesn't appear | When you have hosting that runs PHP |

With **TWR Mirror**, if your page uses features tied to the original address, such as a checkout, video player, or domain-restricted script, test it before using. **Unpack** has its own setup: see the [Unpack method](https://help.thewhiterabbit.app/en/article/unpack-method-install-the-campaign-on-your-hosting-eehzxp/).

| No method is better than the others. If you're not sure which to pick, keep the method TWR already recommends by default for that traffic source.

## Where to choose the method

On the campaign creation or edit screen, the **Delivery method** is set separately for the **Safe Page** and for the **Offer Page**. Choose the option that best fits each one.

![](https://storage.crisp.chat/users/helpdesk/website/-/4/d/7/d/4d7d7d2dfaedd800/01-metodos-entrega-selecao_juevdz.gif)

## How to test each method

You can check the result without affecting real traffic:

- **Safe Page**: access the campaign URL directly in the browser (with Unpack, the link where you installed the PHP file). Since the access doesn't come from an ad, you see the Safe Page.
- **Offer Page**: click **Test Offer**. TWR generates a test parameter that you add to the URL. When you open the link with that parameter, the access is forwarded to the Offer Page, and you see in the browser how the redirection happens with each method.

Test mode doesn't affect the campaign's performance and can be turned off afterward. Full step by step in [How to test if your campaign is set up correctly](https://help.thewhiterabbit.app/en/article/how-to-test-if-your-campaign-is-set-up-correctly-1rd6k36/).