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• The 501 status code message is displayed when the server does not recognize the document request method. The server is not capable of fulfilling this request and states the request was Not Implemented.

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  Cite Definition for HTTP 501 Status Code Definition

  American Psychological Association (APA)

  HTTP 501 Status Code Definition. (n.d.). SEO Glossary.com. Retrieved March 24, 2023, from website: http://www.expertglossary.com/definition/http-501-status-code-definition.

  Chicago Manual of Style (CMS)

  HTTP 501 Status Code Definition. seoglossary.com. SEO Glossary.com. SEO Glossary.com. http://www.expertglossary.com/definition/http-501-status-code-definition (accessed: March 24, 2023).

  Modern Language Association (MLA)

  "HTTP 501 Status Code Definition." SEO Glossary.com. SEO Glossary.com. 24 March. 2023 http://www.expertglossary.com/definition/http-501-status-code-definition.

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