Origin Is Unreachable

Unofficial (Cloudflare)
Cloudflare could not reach the origin server

Specification of the HTTP status code 523

work in progress

How to throw a 523 statuscode with PHP?

To throw the HTTP status code 523 on a web page, the PHP function http_response_code can be used. The syntax is as follows: http_response_code(523) (PHP 5 >= 5.4.0, PHP 7, PHP 8)

Test the 523 HTTP status code

In order to be able to display the HTTP status code (in this case 523 Origin Is Unreachable) and other information on the client side, the development console must be opened with F12. Afterwards you have to navigate to the tab "Network". Now you can open the page, in the network tab you should see the web page (example index.php). This must be selected and then the Herder section must be selected. Here the user will see the following result:

Status code 523 Origin Is Unreachable
URL: https://http-statuscode.com/errorCodeExample.php?code=523
Status: 523 Origin Is Unreachable
Those: Network
IP address: XX.XX.XX.XX
Status code 523 Origin Is Unreachable

Browser compatibility of the 523 status code

Chrome no data
Edge no data
Firefox no data
Opera no data
Safari no data
Chrome Android no data
Firefox for Android no data
Opera Android no data
Safari on iOS no data
Internet no data
WebView Android no data
Author: Tony Brüser
Author: Tony Brüser

Tony Brüser is an enthusiastic web developer with a penchant for HTTP status codes.