HTTP 103 Early Hints vs 308 Permanent Redirect
HTTP 103 (Early Hints) is a 1xx Informational response, while 308 (Permanent Redirect) is a 3xx Redirection 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, 308 means that the resource has been permanently moved. Like 301, but guarantees the HTTP method will NOT be changed.
説明
Used to return some response headers before the final HTTP message. Allows the browser to start preloading resources while the server prepares the response.
このコードが表示される場合
When a server wants the browser to start loading CSS/JS before the full response is ready.
解決方法
No fix needed. This optimization helps speed up page loading.
説明
The resource has been permanently moved. Like 301, but guarantees the HTTP method will NOT be changed.
このコードが表示される場合
For permanent URL changes where POST requests must remain POST.
解決方法
Update all references to the new URL. The HTTP method is preserved.
主な違い
103 is a 1xx Informational response, while 308 is a 3xx Redirection 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 308: The resource has been permanently moved. Like 301, but guarantees the HTTP method will NOT be changed.
You encounter 103 when when a server wants the browser to start loading CSS/JS before the full response is ready.
You encounter 308 when for permanent URL changes where POST requests must remain POST.
どちらをいつ使うか
For 103 (Early Hints): No fix needed. This optimization helps speed up page loading. For 308 (Permanent Redirect): Update all references to the new URL. The HTTP method is preserved.