HTTP 505 HTTP Version Not Supported vs 530 Site Frozen
Both HTTP 505 (HTTP Version Not Supported) and 530 (Site Frozen) belong to the 5xx Server Error category. 505 indicates that the server does not support the HTTP version used in the request. Meanwhile, 530 means that cloudflare-specific. Used by Pantheon hosting to indicate a frozen site.
Description
The server does not support the HTTP version used in the request.
When You See It
When a client uses an HTTP version the server doesn't support.
How to Fix
Use a supported HTTP version (typically HTTP/1.1 or HTTP/2).
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
HTTP 505: The server does not support the HTTP version used in the request.
HTTP 530: Cloudflare-specific. Used by Pantheon hosting to indicate a frozen site.
You encounter 505 when when a client uses an HTTP version the server doesn't support.
You encounter 530 when when a site on Pantheon hosting has been frozen due to inactivity.
When to Use Which
For 505 (HTTP Version Not Supported): Use a supported HTTP version (typically HTTP/1.1 or HTTP/2). For 530 (Site Frozen): Reactivate the site on the hosting platform.