---
title: "Validate VMC or CMC logo format (encoded)"
source_url: https://dev.digicert.com/certcentral-apis/services-api/utilities/validate-vmc-or-cmc-logo-format-encoded.html
api_method: PUT
api_endpoint: "/services/v2/util/validate-vmc-encoded-logo"
api_url: "https://www.digicert.com/services/v2/util/validate-vmc-encoded-logo"
---

**PUT** `https://www.digicert.com/services/v2/util/validate-vmc-encoded-logo`

Use this endpoint to check if the format of an SVG file is compatible with the requirements for Verified Mark Certificates (VMC) or a Common Mark Certificate (CMC).


> **Info**
>
> This endpoint accepts compressed logo data, formatted as a base64-encoded string. To submit raw SVG data, use the [Validate VMC or CMC logo format (SVG)](https://dev.digicert.com/md/certcentral-apis/services-api/utilities/validate-vmc-or-cmc-logo-format-svg.md) endpoint.


## Request format

To submit a request to the **Validate VMC or CMC logo format (encoded)** endpoint:

- Set the `Content-Type` header to `application/json`.
- Format the data for your SVG logo as a compressed, base64-encoded string.
  For example, in a bash shell, run this command:
  ```bash
  echo '<XML content for your SVG logo>' | gzip | base64
  ```

- In the JSON payload, submit the string containing the encoded logo data as the value of the `logo` parameter.
- Omit the custom header `X-DC-DEVKEY`. This operation does not require authentication with an API key.

## Response format

If the logo format meets VMC or CMC requirements, the endpoint returns a status of **204 No Content**.

If there is a formatting issue with the logo, the endpoint returns an error message with a status of **400 Bad Request**. The error message provides:

- A brief description of the formatting issue.
- The line and column number where you can find the problem when you open the file in a text editor.

To learn more about formatting a logo for VMC or CMC, visit <a href="https://www.digicert.com/blog/getting-ready-for-bimi-prep-your-logo" target="_blank" rel="noopener noreferrer">Getting Ready for BIMI: Prep Your Logo</a>.

To resolve issues with the SVG format of your logo:

1. Open the SVG file in a text editor.
2. Update the content at the locations displayed in the error messages.
3. Save the file.
4. Submit another request with your updated SVG data.

## Example requests and responses

**cURL**

```bash
curl --request PUT 'https://www.digicert.com/services/v2/util/validate-vmc-encoded-logo' \
--header 'Content-Type: application/json' \
--data-raw '{
  "logo" : {{compressed_base64_encoded_svg_logo}}
}'
```

**Python**

```python
import requests
import json

url = "https://www.digicert.com/services/v2/util/validate-vmc-encoded-logo"

payload = json.dumps({
  "logo": {{compressed_base64_encoded_svg_logo}}
})
headers = {
  'Content-Type': 'application/json'
}

response = requests.request("PUT", url, headers=headers, data=payload)

print(response.text)
```

**Go**

```go
package main

import (
		"fmt"
		"strings"
		"net/http"
		"io/ioutil"
)

func main() {

		url := "https://www.digicert.com/services/v2/util/validate-vmc-encoded-logo"
		method := "PUT"

		payload := strings.NewReader(`{
  "logo" : {{compressed_base64_encoded_svg_logo}}
}`)

		client := &http.Client {
		}
		req, err := http.NewRequest(method, url, payload)

		if err != nil {
				fmt.Println(err)
				return
		}
		req.Header.Add("Content-Type", "application/json")

		res, err := client.Do(req)
		if err != nil {
				fmt.Println(err)
				return
		}
		defer res.Body.Close()

		body, err := ioutil.ReadAll(res.Body)
		if err != nil {
				fmt.Println(err)
				return
		}
		fmt.Println(string(body))
}
```

**NodeJS**

```javascript
var request = require('request');
var options = {
  'method': 'PUT',
  'url': 'https://www.digicert.com/services/v2/util/validate-vmc-encoded-logo',
  'headers': {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "logo": {{compressed_base64_encoded_svg_logo}}
  })

};
request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
});
```


**204 No Content**

```json
// empty
```

**400 Bad Request**

```json
{
  "errors": [
    {
      "code": "invalid_vmc_logo",
      "message": "attribute \"overflow\" not allowed here at line 4:65"
    }
  ]
}
```


## Request parameters

<table class="params-table">
<thead>
<tr>
<th>Name</th>
<th>Req/Opt</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>logo</td>
<td>required</td>
<td>string</td>
<td>Compressed logo data, formatted as a base64-encoded string.</td>
</tr>
</tbody>
</table>