---
title: How to configure a customized error page
description: Learn how to set up S3 failover on Scaleway Load Balancer for seamless redundancy. Follow this step-by-step guide to ensure high availability and optimal performance for your cloud storage.
tags: s3-failover amazon-s3 failover load-balancer object-storage bucket
dates:
  validation: 2025-10-30
  posted: 2022-02-21
---
import Requirements from '@macros/iam/requirements.mdx'

import image from './assets/scaleway-customized-error-page.webp'
import image2 from './assets/scaleway-customized-error-page.webp'


The **customized error page** feature allows you to redirect users to a static website hosted on Scaleway Object Storage, in the case that none of your Load Balancer's backends are available to serve the requested content. This website could be a simple, single webpage or else something much more complex: you build it according to your own requirements.

If you do not configure a customized error page, and none of your backend servers are available, your users will instead see a standard HTTP error displayed in their browser, e.g. `503 Service Unavailable`.

Benefits of using this feature include:
- Displaying customized, branded and user-friendly error messages
- Providing links to support resources or contact information
- Providing information on service status or maintenance
- Redirecting to a mirrored site or skeleton site

You can set up a customized error page during creation of your Load Balancer, or at any point after creation.

<Requirements />

- A Scaleway account logged into the [console](https://console.scaleway.com)
- [Owner](/iam/concepts/#owner) status or [IAM permissions](/iam/concepts/#permission) allowing you to perform actions in the intended Organization
- Created a bucket which is hosting a [bucket website](/object-storage/how-to/use-bucket-website/)

## How to activate a customized error page failover during creation of your Load Balancer

1. Follow the instructions for [creating a Load Balancer](/load-balancer/how-to/create-load-balancer/).
2. Click the  **+Advanced Settings** button while configuring your backend.
    <Lightbox image={image} alt="" />
3. Slide the <Icon name="toggle" /> toggle to activate the customized error page feature, and enter a Scaleway Object Storage [Bucket Website](/object-storage/concepts/#bucket-website) URL in the box. Note that the URL of the bucket endpoint is not sufficient, the bucket website domain is specifically required, **without** a leading protocol (no `http://` or `https://`). An example of correct formatting is `my-bucket.s3-website.nl-ams.scw.cloud`.
    <Message type="note">
      This feature is only available for Load Balancers using the HTTP protocol on their backend.
    </Message>
4. Click **Create frontend and backend** to finish.

## How to activate or deactivate a customized error page failover after creation of your Load Balancer

1. Click **Load Balancers** in the Network section of the [Scaleway console](https://console.scaleway.com/) side menu.
2. Use the **region selector** at the top of the page to filter for the region of the Load Balancer you want to configure, then click the Load Balancer in the listing. The Load Balancer's **Overview** page displays.
3. Click the **Backends** tab. The list of your backends displays.
4. Click the backend you wish to configure a customized error page for, and click the **Edit** button.
5. Click the  **+ Advanced Settings** button.
    <Lightbox image={image2} alt="" />
6. Slide the <Icon name="toggle" /> toggle to activate or deactivate the customized error page feature as required.
    <Message type="note">
      This feature is only available for Load Balancers using the HTTP protocol on their backend.
    </Message>
7. Enter a Scaleway Object Storage [Bucket Website](/object-storage/concepts/#bucket-website) URL in the box, if activating the feature. Note that the URL of the bucket endpoint is not sufficient, the bucket website domain is specifically required, **without** a leading protocol (no `http://` or `https://`). An example of correct formatting is `my-bucket.s3-website.nl-ams.scw.cloud`.
8. Click **Edit backend** to finish.

## How to create a static website for your customized error page

Having activated the customized error page feature on your Load Balancer, you must ensure that you have created a static website or webpage to display. See our [dedicated documentation](/object-storage/how-to/use-bucket-website/) to learn how to create a static website with Scaleway Object Storage.