HTTP 101 Switching Protocols

Status code 101 · Class 1xx

HTTP

Switching Protocols

HTTP request chain from browser through CDN and proxy to the origin server
HTTP errors: find which hop in the request chain failed and read its logs.

What it means

HTTP_101 is a HTTP error code reported by web servers and HTTP clients. Its official message is: “Switching Protocols”

How to fix HTTP 101 Switching Protocols

  1. This status is not an error: the request is being processed or succeeded
  2. If a client still reports failure, inspect the full response with 'curl -v' — the problem is in the body or a later request

Related errors

HTTP 100 ContinueHTTP 102 ProcessingHTTP 103 Early HintsHTTP 504 Gateway TimeoutHTTP 301 Moved PermanentlyHTTP 302 FoundHTTP 304 Not ModifiedHTTP 400 Bad Request

Source: IANA HTTP Status Code Registry

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