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captive portal

A Web page used on public-access networks that require a user to view and interact with before being granted access to the public network. Captive portals are widely used by businesses that offer free Wi-Fi hotspots to Internet users. Usually a captive portal requires users to read and accept the business' acceptable use policy (AUP).

See "Public Wi-Fi Hotspots" in the Quick Reference section of Webopedia.

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