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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
503 - Service Unavailable
451 - Unavailable for Legal Reasons
226 - IM Used
425 - Too Early

Written by Benjamin Bouchet on Sep 12, 2020 and last updated at Sep 23, 2021.

← View all HTTP Status Codes

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