Feed Validator Results: https://www.2sneakers.de/journal/feed/

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Server returned HTTP Error 401: Unauthorized [help]
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```
{"statusCode":401,"error":"Unauthorized","message":"Authentication required"}
```

In addition, interoperability with the widest range of feed readers could be improved by implementing the following recommendation.

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Source: https://www.2sneakers.de/journal/feed/

{"statusCode":401,"error":"Unauthorized","message":"Authentication required"}