HTTP 100 Continue vs 301 Moved Permanently
HTTP 100 (Continue) is a 1xx Informational response, while 301 (Moved Permanently) is a 3xx Redirection response. 100 indicates that the server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected. 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.
Описание
The server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected.
Когда вы это видите
When a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
Как исправить
This is an interim response — no fix needed. The client should continue sending the request body.
Описание
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.
Когда вы это видите
After domain migrations, URL restructuring, or when consolidating duplicate URLs.
Как исправить
Update links and bookmarks to the new URL in the Location header. For SEO, this is the preferred redirect for permanent moves.
Ключевые различия
100 is a 1xx Informational response, while 301 is a 3xx Redirection response.
HTTP 100: The server has received the request headers and the client should proceed to send the request body. This lets the client know it can continue with the request or abort if the headers were rejected.
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 100 when when a client sends an Expect: 100-continue header, the server responds with 100 before the client sends the body.
You encounter 301 when after domain migrations, URL restructuring, or when consolidating duplicate URLs.
Когда что использовать
For 100 (Continue): This is an interim response — no fix needed. The client should continue sending the request body. 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.