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HTTP Status Code
426 - Upgrade Required

4xx Client errors

The HTTP Status Code 426 means that the client should switch to a different protocol such as TLS/1.0, as given in the Upgrade header field.‍

Additional Links and Codes Related to Status Code 426
426 - Upgrade Required
412 - Precondition Failed
418 - I'm a Teapot
417 - Expectation Failed
← View all HTTP Status Codes

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