---
metadata:
- name: generator
content: Diplodoc Platform v5.52.0
alternate:
- https://yandex.com/support/adfox/en/banners/specs/adfox-code-transfer.md
- https://yandex.com/support/adfox/ru/banners/specs/adfox-code-transfer.md
- href: en/banners/specs/adfox-code-transfer.md
type: text/markdown
title: Markdown version
- href: ../../llms.txt
type: text/markdown
title: llms.txt
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com/support/adfox/en/llms.txt
# Adfox code forwarding
## Description {#description4}
With Adfox code forwarding, you can install the Adfox ad tag in the banner or the default banner. The tag (code) will be executed on the page without re-initiating the context.js library, which significantly reduces the time before the banner is displayed.
Format features:
- Viewability check works for the banner that will eventually be displayed on the site.
- Click statistics for the **Adfox code forwarding [context]** banner aren't taken into account.
We recommend using the [Code forwarding](https://yandex.com/support/adfox/en/banners/specs/code-transfer.md#clicksrequirements) template to forward HTML5 code or embed codes of third-party systems.
## Adfox tag requirements {#coderequirements2}
1. The original view of the ad code:
```html
```
1. Copy the embed code parameters inside the parentheses in the form of an object. For example:
```javascript
{
ownerId: 168627,
containerId: 'adfox_149487961538858600',
params:{
p1: 'bwfgn',
p2: 'ekwx',
pfc: 'bmtev',
pfb: 'eokcn'
}
}
```
Object properties can include: `ownerId`, `params`, `customDomain`.
If no property is specified, the property from the embed code object of the previous request is used.
## Add a banner {#addbanner4}
To add a banner with the Adfox tag, use the **Adfox code forwarding [context]** template. If this template is missing from the banner type list, [add it from the preset](https://yandex.com/support/adfox/en/ad-inventory/settings/template.md#predefined-template).
When adding a banner, specify the parameters:
- **Tracking pixel link**: Adfox pixel is used by default `//banners.adfox.ru/transparent.gif`. If you need to keep track of impressions in an external system, delete the Adfox pixel and specify another link.
- **Re-request code parameters**: Insert the [Adfox ad tag parameters](#coderequirements2).
Please note that when the banner is saved, the parameters of the re-request code will be wrapped in quotation marks in a special way. That is necessary for the code to work properly. Don't change the resulting code after saving the banner.
- **Name of the banner container class attribute**: If necessary, enter a name (or multiple names separated by a space) for the `class` attribute of the banner container.
Example of placing a banner with the Adfox ad tag:
{style="border: solid 1px #cccccc; max-width=500px"}
{% note info %}
[Ad labeling](https://yandex.com/support/adfox/en/labeling/about.md) must be performed by the ad tag being forwarded.
{% endnote %}
## Add a default banner {#defoltbanner4}
1. To add a default banner with the Adfox code, [use the code generator](https://yandex.ru/promo/yan/adfox-specs/default-generator/index_en).
1. Select the code type that you place in the default banner.
1. Add tracking pixels if necessary.
1. Copy the ad tag and paste it in the **Code** field with the **JavaScript** type.
Example of placing a backup ad with the Adfox ad tag:
{style="border: solid 1px #cccccc; max-width=500px"}
## Contact support
Send an email