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If you are looking for software (self-hosted):
You should provide more information about the platform you're using. There are lots of solutions that exist for this. Here is one for WordPress. There are more for Django, Ruby on Rails, JavaEE, etc.
Your platform is important because, unless you want to use some innovative blockchain like Bitmessage (in which ...
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If you are familiar with (or willing to learn) Windows Powershell: there is the Unviersal Dashboard. It comes in a simple free version, and a payed version with more features (like login pages, LDAP authentication...).
All the 'front end work' is already done, you can very easy create dashboards with data from all kind of sources, you can create graphs... ...
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