HTTP 206 Partial Content vs 526 Invalid SSL Certificate
HTTP 206 (Partial Content) is a 2xx Success response, while 526 (Invalid SSL Certificate) is a 5xx Server Error response. 206 indicates that the server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming. In contrast, 526 means that cloudflare-specific. The origin's SSL certificate could not be validated.
Description
The server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
When You See It
During video streaming, large file downloads, or when resuming interrupted downloads.
How to Fix
No fix needed. This is normal behavior for range requests.
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
206 is a 2xx Success response, while 526 is a 5xx Server Error response.
HTTP 206: The server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
HTTP 526: Cloudflare-specific. The origin's SSL certificate could not be validated.
You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
You encounter 526 when when using Cloudflare Full (Strict) mode with an invalid origin certificate.
When to Use Which
For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 526 (Invalid SSL Certificate): Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.