HTTP 206 Partial Content vs 525 SSL Handshake Failed
HTTP 206 (Partial Content) is a 2xx Success response, while 525 (SSL Handshake Failed) 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, 525 means that cloudflare-specific. SSL/TLS handshake with the origin server failed.
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. SSL/TLS handshake with the origin server failed.
When You See It
When origin SSL certificate is expired, misconfigured, or incompatible.
How to Fix
Check origin SSL certificate validity. Ensure TLS version compatibility. Renew expired certificates.
Key Differences
206 is a 2xx Success response, while 525 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 525: Cloudflare-specific. SSL/TLS handshake with the origin server failed.
You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
You encounter 525 when when origin SSL certificate is expired, misconfigured, or incompatible.
When to Use Which
For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 525 (SSL Handshake Failed): Check origin SSL certificate validity. Ensure TLS version compatibility. Renew expired certificates.