HTTP 201 Created vs 526 Invalid SSL Certificate
HTTP 201 (Created) is a 2xx Success response, while 526 (Invalid SSL Certificate) is a 5xx Server Error response. 201 indicates that the request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity. In contrast, 526 means that cloudflare-specific. The origin's SSL certificate could not be validated.
Description
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
When You See It
After successfully creating a new user, post, order, or other resource via a REST API.
How to Fix
No fix needed. Check the Location header for the URL of the new resource.
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
201 is a 2xx Success response, while 526 is a 5xx Server Error response.
HTTP 201: The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
HTTP 526: Cloudflare-specific. The origin's SSL certificate could not be validated.
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 526 when when using Cloudflare Full (Strict) mode with an invalid origin certificate.
When to Use Which
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 526 (Invalid SSL Certificate): Install a valid SSL certificate on the origin, or use Cloudflare Origin CA certificate.