Http Error: 401 Unauthorized

401 Unauthorized

The 401 http status code is returned when a request is made to a resource that requires authentication, but the credentials are not provided. This can happen for a number of reasons, but the most common cause is simply forgetting to include the necessary authentication information in the request. 

If you receive a 401 status code when making a request, it is important to first check that you are including the correct authentication information.


A user will receive a 401 status code when accessing a protected resource until they provide a valid username and password (or in some cases a bearer token).

See the below  links for configuring HTTP authentication in popular web servers:

RFC #: 7235 section 3.1

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Imran Selimkhanov | Founder at Productive Shop

Imran Selimkhanov

Imran is the founder and CEO of Productive Shop. He writes on B2B demand generation and SEO strategy topics to help startups understand how to win digital share of voice. Prior to Productive Shop, Imran led demand generation at an Oracle consultancy, ran an e-commerce site servicing LE teams and helped build PMO offices at technology startup companies. When he’s not at work, Imran can be spotted hiking in the Rockies, honing his clay shooting skills and tumbling off of black diamond ski tracks due to overconfidence in his skiing abilities.

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