mples

Switching protocols might be used with [ WebSockets ](/en-
US/docs/Web/API/WebSockets_API) .

http

    
    
    HTTP/1.1 101 Switching Protocols
    Upgrade: websocket
    Connection: Upgrade
    

##  Specifications

Specification  
---  
[ HTTP Semantics  
#  status.101  ](https://httpwg.org/specs/rfc9110.html#status.101)  
  
##  See also

  * [ Protocol upgrade mechanism ](/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism)
  * [ WebSockets ](/en-US/docs/Web/API/WebSockets_API)
  * [ ` Upgrade ` ](/en-US/docs/Web/HTTP/Headers/Upgrade)
  * [ ` 426 ` ](/en-US/docs/Web/HTTP/Status/426) ` Upgrade Required `

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  *[
                
                 Non-standard
                
               ]: Non-standard. Check cross-browser support before using.
  *[
                
                 Deprecated
                
               ]: Deprecated. Not for use in new websites.
  *[
                
                 Experimental