450 Blocked by Windows Parental Controls

Legacy Windows code indicating that parental control settings blocked access to the page.

Status

HTTP/1.1 450 Blocked by Windows Parental Controls

Details

Category: 4xx
Status: Unofficial (Microsoft). Not registered with IANA. A server, framework, or CDN convention.
Specification: none, not defined by any RFC
Cacheable: Not cacheable
Response body: Allowed
Retry: Do not retry

Windows Parental Controls returned 450 when a page was blocked by family safety settings. It is a client-side block surfaced as an HTTP status rather than something the origin server produced.

The feature has been replaced by Microsoft Family Safety, and the code is effectively historical.

Common causes

Family safety software on the machine blocked the destination.

How to fix it

As the client

Adjust the parental control policy on the device. Nothing about the request itself will change the outcome.

As the server

Not applicable. The block happens on the client, not at the origin.

Examples

GET /content HTTP/1.1
Host: www.example.com

HTTP/1.1 450 Blocked by Windows Parental Controls