HTTP 103 Early Hints vs 301 Moved Permanently
HTTP 103 (Early Hints) is a 1xx Informational response, while 301 (Moved Permanently) 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, 301 means that the resource has been permanently moved to a new URL. All future requests should use the new URL. Search engines will transfer link equity to the new URL.
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 to a new URL. All future requests should use the new URL. Search engines will transfer link equity to the new URL.
このコードが表示される場合
After domain migrations, URL restructuring, or when consolidating duplicate URLs.
解決方法
Update links and bookmarks to the new URL in the Location header. For SEO, this is the preferred redirect for permanent moves.
主な違い
103 is a 1xx Informational response, while 301 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 301: The resource has been permanently moved to a new URL. All future requests should use the new URL. Search engines will transfer link equity to the new URL.
You encounter 103 when when a server wants the browser to start loading CSS/JS before the full response is ready.
You encounter 301 when after domain migrations, URL restructuring, or when consolidating duplicate URLs.
どちらをいつ使うか
For 103 (Early Hints): No fix needed. This optimization helps speed up page loading. For 301 (Moved Permanently): Update links and bookmarks to the new URL in the Location header. For SEO, this is the preferred redirect for permanent moves.