> For the complete documentation index, see [llms.txt](https://adagio-io.gitbook.io/adagio-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://adagio-io.gitbook.io/adagio-documentation/openrtb-s2s-endpoint/editor/bid-response-fields-for-web-inventory.md).
# Bid Response Fields for Web Inventory
The Bid Response contains one or more SeatBids, each with Bids specifying creative details, price, and targeting. Mandatory fields must follow the OpenRTB spec, while optional fields can improve targeting, analytics, and performance with Adagio’s DSP partners.
{% hint style="info" %}
**👉 Access the full list of supported parameters in** [Bid Response objects and parameters](/adagio-documentation/openrtb-s2s-endpoint/all-supported-openrtb-parameters/bid-response-objects-and-parameters.md)
{% endhint %}
Adagio populates as many fields as possible among bid response objects and parameters. The content of each response depends on:
* the information provided in the original ad request,
* the data returned by bidders in their bid responses.
### Bid Response Sample for Web
{% tabs %}
{% tab title="Banner" %}
{% code overflow="wrap" %}
```json
{
"id": "7389fb72-ff8e-49bb-b560-e72286fa4ac9",
"seatbid": [
{
"seat": "19116",
"bid": [
{
"id": "1",
"impid": "1",
"price": 1.2,
"adm": "![](\"http://image.com/\"/)
![](\"http://myadserver.com/impression/1.0\"/)
",
"adomain": [
"advertiser.com"
],
"cid": "123",
"crid": "12",
"w": 728,
"h": 90
}
]
}
],
"cur": "USD"
}
```
{% endcode %}
{% endtab %}
{% tab title="Video" %}
{% code overflow="wrap" %}
```json
{
"id": "7389fb72-ff8e-49bb-b560-e72286fa4ac9",
"seatbid": [
{
"seat": "19116",
"bid": [
{
"id": "1",
"impid": "1",
"price": 1.2,
"adm": "",
"adomain": [
"advertiser.com"
],
"cid": "123",
"crid": "12",
"apis": [
2
],
"api": 2,
"mtype": 2
}
],
"seat": "5"
}
],
"cur": "USD"
}
```
{% endcode %}
{% endtab %}
{% tab title="Native" %}
{% code overflow="wrap" %}
```json
{
"id": "7389fb72-ff8e-49bb-b560-e72286fa4ac9",
"seatbid": [
{
"seat": "19116",
"bid": [
{
"id": "1",
"impid": "1",
"price": 1.2,
"adm": "{\"ver\":\"1.2\",\"assets\":[{\"id\":4,\"required\":1,\"img\":{\"type\":3,\"url\":\"https://via.placeholder.com/300x250\",\"w\":300,\"h\":250}},{\"id\":3,\"required\":1,\"img\":{\"type\":1,\"url\":\"https://via.placeholder.com/50x50\",\"w\":50,\"h\":50}},{\"id\":2,\"required\":1,\"title\":{\"text\":\"A test Native Ad\",\"len\":50}},{\"id\":6,\"required\":1,\"data\":{\"type\":2,\"value\":\"Random text\"}},{\"id\":1,\"required\":1,\"data\":{\"type\":12,\"value\":\"Random text\"}},{\"id\":5,\"required\":0,\"data\":{\"type\":3,\"value\":\"3\"}}],\"link\":{\"url\":\"http://adserver.com/click?impid=102\"},\"eventtrackers\":[{\"event\":1,\"method\":1,\"url\":\"http://burl.com\"},{\"event\":1,\"method\":2,\"url\":\"./jquery.js\"},{\"event\":1,\"method\":1,\"url\":\"http://adserver.com/native?impid=102\"},{\"event\":1,\"method\":1,\"url\":\"https://c-testing.4dex.io/imp-testing.gif?adg_com=0.2\\u0026adu_code=1\\u0026auction_id=de641c15-bace-4f80-8425-d21b4f62fecc\\u0026bid_id=1234567890\\u0026bid_ts=1736783118\\u0026bidder=pubmatic\\u0026breq_id=9ea346b2-d2af-4362-ac79-c891a2b25ca1\\u0026bttl=300\\u0026buid=0\\u0026buids=0\\u0026cpm=4.0465082\\u0026crea_id=creative111\\u0026ctry=FRA\\u0026curr=USD\\u0026discrp_adjst=0.033\\u0026domn=maville.com\\u0026dvc=4\\u0026environment=phone\\u0026h=1\\u0026it=ortb\\u0026ivt_adjst=0\\u0026lzy=0\\u0026mt=nat\\u0026net_cpm=3.23720656\\u0026org_id=1004\\u0026os=ios\\u0026partid=2025011315\\u0026plcmt=unknown\\u0026pltfrm=web\\u0026pn=1\\u0026pv_id=a0d53304-2375-4f74-aad8-2bebf90d7bc1\\u0026rpmadc_smpl=0\\u0026rule_id=20\\u0026seat_id=6\\u0026seattyp=shared\\u0026site=maville\\u0026spr_id=53\\u0026sspv=3.0.0-gcp-ams\\u0026tiv=-1\\u0026url=https%3A%2F%2Fmaville.com%2F\\u0026ve=organic\\u0026vr=-1\\u0026w=1\"}],\"privacy\":\"https://www.example.com/privacy-notice\"}",
"adomain": [
"advertiser.com"
],
"cid": "123",
"crid": "12",
"mtype": 4,
"w": 1,
"h": 1
}
],
"seat": "5"
}
],
"cur": "USD"
}
```
{% endcode %}
{% endtab %}
{% endtabs %}
---
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