---
title: "Deregister a list of hostnames"
method: DELETE
path: "/bulk/hostnames"
tags: ["bulk"]
---

# Deregister a list of hostnames

`DELETE /bulk/hostnames`

## Request

- Base URL: `https://cyber-risk.upguard.com/api/public`
- URL: `https://cyber-risk.upguard.com/api/public/bulk/hostnames`
- Auth: API key in header `Authorization`
- TypeScript: <https://skmtc.dev/upguard/apis/upguard-cyberrisk-api/docs/bulk/hostnames/delete.ts> (a function with typed inputs; its response is checked against the schema)

Deregister a list of hostnames. The provided hostnames must be fully qualified domain names
or IPv4 addresses. Currently, a maximum of 1000 hostnames in a single request is supported.

This is an add-on endpoint not available to all accounts. Please contact support for information about bulk endpoints and how to upgrade your account.

Required API key permissions: `Admin` (select when creating API key in Account Settings)

## Request body

- BulkDeregisterHostnamesV1RequestBody
  - `hostnames` string[]: The hostnames to deregister. Currently, a maximum of 1000 hostnames in a single request is supported.

## Response `200`

Returns the number of deregistered hostnames as well as the number of remaining slots.

- BulkDeregisterHostnamesV1ResponseBody
  - `deregistered` integer: The number of deregistered hostnames.
  - `remaining` integer: The number of remaining slots.

## Other responses

- `403`: Your API key does not have permission to perform this action.
- `422`: An invalid parameter was supplied or a mandatory parameter was missing
- `429`: Too many requests have been made to this endpoint.
- `500`: An internal system error occurred

---

[API](https://skmtc.dev/upguard/apis/upguard-cyberrisk-api.md) - [All operations](https://skmtc.dev/upguard/apis/upguard-cyberrisk-api/llms.txt) - [OpenAPI document](https://skmtc.dev/upguard/apis/upguard-cyberrisk-api/revisions/d044bf6dc61e?raw)