A captive portal or splash page is usually a web page that appears on your web browser when you joined to an open public network. You will need to either:
- enter an user name and/or password
- enter a voucher code
- login with your social media or email account
- answer some questionnaires
- click on an agreement
before you are allowed to use the internet from that remote wireless network.
Most providers also use the captive portal / splash page as a form of inexpensive advertising where you are shown their products and services before offering you internet access.
In Apple devices, an automatic pop-up may appear to prompt you of such instances.
In Android devices, an alert notice may prompt you to sign in.