---
title: "HTTP Header"
url: "https://help.internetx.com/en/api/core-http-header/"
lang: "en"
section: "API reference — API reference (XML/JSON)"
breadcrumb: "JSON > JSON API basics"
updated: "2025-01-15"
---

# HTTP Header

In addition to the actual data, some meta-information is exchanged in both the request and the response from the server. This is summarized in the HTTP headers.

Some headers are used only in the response from the system and have no effect in a request to the system.

## X-Domainrobot-2FA-Token

The 2FA token.

| Header name | X-Domainrobot-2FA-Token |
| --- | --- |
| Header values | String |
| Usage | Request |

## X-Domainrobot-Bulk-Limit

The limit for bulk requests. If the limit is smaller than the number of objects in the request, the requests are processed asynchronously.

| Header name | X-Domainrobot-Bulk-Limit |
| --- | --- |
| Header values | Integer,e.g. 25 |
| Usage | Request / Response |

## X-Domainrobot-Context

The AutoDNS ID of the user being used.

| Header name | X-Domainrobot-Context |
| --- | --- |
| Header values | Integer,e.g. 4 |
| Usage | Request / Response |

## X-Domainrobot-Ctid

The client transaction ID used to identify a request. Set by the client.

| Header name | X-Domainrobot-Ctid |
| --- | --- |
| Header values | String |
| Usage | Request |

## X-Domainrobot-Demo

Enable and disable demo mode.  

| Header name | X-Domainrobot-Demo |
| --- | --- |
| Header values | Boolean<br>true = demo mode enabled<br>false = demo mode disabled |
| Usage | Request / Response |

## X-Domainrobot-Domain-Safe-Pin

The DomainSafe Pin.

| Header name | X-Domainrobot-Domain-Safe-Pin |
| --- | --- |
| Header values | String |
| Usage | Request / Response |

## X-Domainrobot-Domain-Safe-Transaction

The DomainSafe transaction number.

| Header name | X-Domainrobot-Domain-Safe-Transaction |
| --- | --- |
| Header values | String |
| Usage | Request / Response |

## X-Domainrobot-Domain-Safe-Transaction-Expire

The expiration date of the DomainSafe transaction.

| Header name | X-Domainrobot-Domain-Safe-Transaction-Expire |
| --- | --- |
| Header values | String<br>date-time |
| Usage | Request / Response |

## X-Domainrobot-Domain-Safe-Tan

The DomainSafe TAN.

| Header name | X-Domainrobot-Domain-Safe-Tan |
| --- | --- |
| Header values | String<br>letters and digits |
| Usage | Request / Response |

## X-Domainrobot-Owner-User

The Personal AutoDNS ID of the subordinate user.

| Header name | X-Domainrobot-Owner-User |
| --- | --- |
| Header values | String |
| Usage | Request / Response |

## X-Domainrobot-Owner-Context

The Personal AutoDNS ID of the subordinate user.

| Header name | X-Domainrobot-Owner-Context |
| --- | --- |
| Header values | Integer, e.g. 4 |
| Usage | Request /R esponse |

## X-Domainrobot-SessionId

The session ID from the POST /login route.

| Header name | X-Domainrobot-SessionId |
| --- | --- |
| Header values | String |
| Usage | Request / Response |

## X-Domainrobot-Stid

The server transaction ID, which is a unique ID used to identify a request. It is generated by the system.

| Header name | X-Domainrobot-Stid |
| --- | --- |
| Header values | String |
| Usage | Response |

## X-Domainrobot-WS

Specifies whether messages should be sent to Websocket or not.

| Header name | X-Domainrobot-WS |
| --- | --- |
| Header values | String<br>Possible values:<br>• BOTH = Task and asynchronous job<br>• ASYNC = Asynchronous job only<br>• NONE = Nothing is sent |
| Usage | Request / Response |

## X-Domainrobot-WS-Target

Specifies where to send messages to the websocket (session or user).

| Header name | X-DomainRobot-WS-Target |
| --- | --- |
| Header values | Enum<br>Possible values:<br>• USER<br>• SESSION |
| Usage | Request / Response |