---
title: "EPP extensions"
url: "https://help.internetx.com/en/api/epp-epp-extensions/"
lang: "en"
section: "API reference — EPP API"
breadcrumb: "API reference"
updated: "2025-03-13"
---

# EPP extensions

For the AutoDNS EPP interface different EPP extensions were defined.

## Domain extensions

In certain cases, domain orders require additional information that is not included in the RFC. This information can be displayed with the help of [domain extensions](/en/api/epp-domain-extensions/).

## Contact extensions

Sometimes you need extra information for the contact operations. This information is displayed in the [contact extensions](/en/api/epp-general-contact-extensions/).

## TLD extensions

All [extensions](/en/api/epp-tld-extensions/) for specific TLDs.

-   [.aero](/en/api/epp-aero/)
-   [.au](/en/api/epp-au/)
-   [.bank](/en/api/epp-bank/)
-   [.barcelona](/en/api/epp-barcelona/)
-   [.ca](/en/api/epp-ca/)
-   [.cat](/en/api/epp-cat/)
-   [.hk](/en/api/epp-hk/)
-   [.it](/en/api/epp-it/)
-   [.jobs](/en/api/epp-jobs/)
-   [.ro](/en/api/epp-ro/)
-   [.ru](/en/api/epp-ru/)
-   [.swiss](/en/api/epp-swiss/)
-   [.uk](/en/api/epp-uk/)
-   .xxx

## System notification extensions

Special [extensions](/en/api/epp-system-notification-extensions/) were created for AutoDNS specific system messages.