> For the complete documentation index, see [llms.txt](https://docs.sdv.dev/rdt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sdv.dev/rdt/transformers-glossary/deep-data-understanding/email/domainextractor.md).

# ＊ DomainExtractor

{% hint style="info" %}
**＊SDV Enterprise Feature.** This feature is available to our licensed users and is not currently in our public library. For more information, visit our page to [Explore SDV](https://docs.sdv.dev/sdv/explore/sdv-enterprise/compare-features).
{% endhint %}

The `DomainExtractor` extracts domains from emails so that they can be used later for data science. It keeps the original emails so that the same exact emails can be recovered during the reverse transform.

<figure><img src="https://2225246359-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVGX92M819eIp0rMg5elc%2Fuploads%2FeyNBdRcFDJG9kAPR0xEs%2Frdt_transformers-glossary-deep-data-understanding-email-domain-extractor_June%2002%202025.png?alt=media&amp;token=70e0bffc-6812-4614-ad4a-0964e2b2af00" alt=""><figcaption></figcaption></figure>

```python
from rdt.transformers.email import DomainExtractor

transformer = DomainExtractor()
```

## Parameters

**`extracted_domain`**: Which parts of the overall email domain to extract during the transformation phase

<table data-header-hidden><thead><tr><th width="186"></th><th></th></tr></thead><tbody><tr><td>(default) <code>'full'</code></td><td>Extract the full domain, which is everything after the <strong>@</strong> sign. For example if the email is <code>'info@datacebo.com'</code>, the full domain is <code>'datacebo.com'</code>.</td></tr><tr><td><code>'top'</code></td><td>Extract only the top domain, which is everything after the <strong>.</strong> character. For example if the email is <code>'info@datacebo.com'</code>, the top domain is <code>'com'</code>.</td></tr></tbody></table>

### Examples

```python
from rdt.transformers.email import DomainExtractor

transformers = DomainExtractor(extracted_domain='top')
```


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