HTTP 507 Insufficient Storage vs 526 Invalid SSL Certificate
Both HTTP 507 (Insufficient Storage) and 526 (Invalid SSL Certificate) belong to the 5xx Server Error category. 507 indicates that the server is unable to store the representation needed to complete the request (WebDAV). Meanwhile, 526 means that cloudflare-specific. The origin's SSL certificate could not be validated.
Description
The server is unable to store the representation needed to complete the request (WebDAV).
When You See It
When the server runs out of disk space during WebDAV operations.
How to Fix
Free up disk space on the server or increase storage capacity.
Description
Cloudflare-specific. The origin's SSL certificate could not be validated.
When You See It
When using Cloudflare Full (Strict) mode with an invalid origin certificate.
How to Fix
Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.
Key Differences
HTTP 507: The server is unable to store the representation needed to complete the request (WebDAV).
HTTP 526: Cloudflare-specific. The origin's SSL certificate could not be validated.
You encounter 507 when when the server runs out of disk space during WebDAV operations.
You encounter 526 when when using Cloudflare Full (Strict) mode with an invalid origin certificate.
When to Use Which
For 507 (Insufficient Storage): Free up disk space on the server or increase storage capacity. For 526 (Invalid SSL Certificate): Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.