> For AI agents: the complete documentation index is available at /en/llms.txt, the full documentation bundle is available at /en/llms-full.txt.

# Backup Link

Comprehensive protection to keep your ad delivery links running smoothly, preventing traffic loss caused by domain bans, DNS resolution failures, domain expiration, and more.

### Step 1 - Find the Domain You Want to Configure in the Domain List, Click the "Configure" Button, and a Configuration Panel Will Appear on the Right

![](/images/Q1kgb9ToWokuITxocEYcFTLOnQi.webp)

**Two backup link strategies are currently supported: redirect to a custom URL, and guide the user to copy a new link for installation.**

![](/images/Izkabi7HToOm5MxH61KcpxZjn2n.webp)

### Strategy 1: Redirect to a Custom URL

When this strategy is selected, users will be automatically redirected to the URL you specify if the domain is banned. **Note: PWA links are not supported here!**

**Steps:**

- Select **Redirect to a Custom URL** in the configuration panel
- Enter a backup URL (e.g., [https://roibest.com](https://roibest.com))
- Click **Save** to complete the configuration

![](/images/Og3fbNUp4o1Nvwxg81PceGjynNh.webp)

### Strategy 2: Guide the User to Copy a New Link for Installation

When the domain is banned, users will see a landing page containing a PWA promotion link on a different domain. They can copy the link and open it in Chrome to reinstall.

**Steps:**

- Select **Guide the User to Copy a New Link for Installation** in the configuration panel
- Choose a promotion link that uses a different domain from the dropdown list
- Click **Save** to complete the configuration

![](/images/NBrTbLJkcoPglvxOxu5clYc4njg.webp)

![](/images/S5RAbBqEaoRGdcxX2x9cSuIQnFh.webp)

### Setting Up Individual Link Overrides

If specific links need their own backup strategy, use the **Per-Link Configuration** feature.

**Steps:**

- Find the "Need to configure individual links separately?" section at the bottom of the configuration panel
- Click the **+ Per-Link Configuration** button
- In the configuration card that appears, first select the promotion link you want to configure separately from the dropdown list
- Then choose a backup strategy for that link (Redirect to a Custom URL or Guide to Copy & Install)
- Repeat the steps above to add more individual configurations (up to 10)
- Click **Save** to complete all configurations

![](/images/IWNxbhwQyo2MIvxEKKycOiKnnFg.webp)