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There is a plugin called n3t coming soon which may help you with this. When enabled it will show a coming soon page (which you can customise if you like) while letting you view the site. It uses your IP address to decide whether you can see the site or not. https://extensions.joomla.org/extension/n3t-coming-soon/


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So why not just set the page in the joomla configuration to „offline“ or did i missed something in your question? Its exactly for this purpose.


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