HTTP 103 Early Hints vs 522 Connection Timed Out
HTTP 103 (Early Hints) is a 1xx Informational response, while 522 (Connection Timed Out) is a 5xx Server Error response. 103 indicates that used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response. In contrast, 522 means that cloudflare-specific. TCP connection to the origin server timed out.
Descripción
Used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response.
Cuándo lo verás
When a server wants the browser to start loading CSS/JS before the full response is ready.
Cómo solucionarlo
No fix needed. This optimization helps speed up page loading.
Descripción
Cloudflare-specific. TCP connection to the origin server timed out.
Cuándo lo verás
When the origin server is overloaded or network issues prevent connection.
Cómo solucionarlo
Check origin server health. Verify firewall rules. Check for network congestion.
Diferencias clave
103 is a 1xx Informational response, while 522 is a 5xx Server Error response.
HTTP 103: Used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response.
HTTP 522: Cloudflare-specific. TCP connection to the origin server timed out.
You encounter 103 when when a server wants the browser to start loading CSS/JS before the full response is ready.
You encounter 522 when when the origin server is overloaded or network issues prevent connection.
Cuándo usar cada uno
For 103 (Early Hints): No fix needed. This optimization helps speed up page loading. For 522 (Connection Timed Out): Check origin server health. Verify firewall rules. Check for network congestion.