HTTP 415 Unsupported Media Type vs 530 Site Frozen
HTTP 415 (Unsupported Media Type) is a 4xx Client Error response, while 530 (Site Frozen) is a 5xx Server Error response. 415 indicates that the server refuses to accept the request because the Content-Type is not supported. In contrast, 530 means that cloudflare-specific. Used by Pantheon hosting to indicate a frozen site.
Description
The server refuses to accept the request because the Content-Type is not supported.
When You See It
When sending JSON to an endpoint that only accepts XML, or missing the Content-Type header.
How to Fix
Set the correct Content-Type header matching the data format you're sending.
Description
Cloudflare-specific. Used by Pantheon hosting to indicate a frozen site.
When You See It
When a site on Pantheon hosting has been frozen due to inactivity.
How to Fix
Reactivate the site on the hosting platform.
Key Differences
415 is a 4xx Client Error response, while 530 is a 5xx Server Error response.
HTTP 415: The server refuses to accept the request because the Content-Type is not supported.
HTTP 530: Cloudflare-specific. Used by Pantheon hosting to indicate a frozen site.
You encounter 415 when when sending JSON to an endpoint that only accepts XML, or missing the Content-Type header.
You encounter 530 when when a site on Pantheon hosting has been frozen due to inactivity.
When to Use Which
For 415 (Unsupported Media Type): Set the correct Content-Type header matching the data format you're sending. For 530 (Site Frozen): Reactivate the site on the hosting platform.