What is a Captive Portal? Your Guide to Capturing More Business Wirelessly

Academy 11 minute read 28th March 2022

If you’re running a physical business, free Wi-Fi access for customers is an expected perk these days. You can simply give away your Wi-Fi password, or you can use a captive portal to restrict access to legitimate customers.

What is a captive portal? How does it work? Why do you need it for your business? Here’s everything you need to know to help you capture more business through your wireless network.

What Does “Captive Portal” Mean?

A captive portal is a customized landing page that businesses use as a primary access point to their Wi-Fi network. The client of the public access or business network is required to pass through this “portal” in order to connect to the hotspot.

Captive portals are widely used by hotels, coffee shops, shopping centers, and airports, among many others.

What is a captive portal - 3 kinds of logins

Small businesses can provide guests with internet access by giving them a password when they come in. But what will prevent these customers from accessing the network any time they’re within range?

One option is for business owners/managers to change the password on a regular basis. Using a captive portal, however, is the simpler solution.

What is Captive Portal Authorization?

When a user attempts to log into a public-access or business network with a captive portal, they are taken to a landing page where they must take a certain action before being given internet access.

The process of user authorization is typically in the form of an acknowledgment of the network’s usage agreement or acceptable use policy, or the entry of a pre-assigned user ID and password. You can also set up designated devices to bypass the login screen using their individual MAC address.

This means captive portals are customisable in how they allow users onto the network, depending on the businesses security requirements.

What is a Captive Portal Login?

When users try to connect to a network or open a browser while already using a particular Wi-Fi network, they are first taken to the captive portal login page.

This webpage serves as a transitional or access page that typically requires an authorized user’s log-in information.

In hotels, for example, new guests who are checking in are provided with the hotel’s Wi-Fi name and a limited-use username and password to access the internet for the length of their stay.

The guest enters their assigned username and password into the log-in page in order to use the hotel’s internet connection.

What are Captive Portals Used for?

What is a captive portal - Process of login

Why should you get a captive portal for your business? Unrestricted access to your business’ internet poses security risks, both to your business and legit users, and also facilitates potential bandwidth hogging.

A captive portal’s purpose is to strengthen network security and bandwidth management, enhance the user experience, and even give you excellent opportunities for marketing and business growth.

How To Set Up a Captive Portal Web Page

Setting up a captive portal for a Wi-Fi network may vary depending on a business’ network setup. Here are the basic steps.

  1. Make sure your firmware is up-to-date.
  2. Access the web-based setup page for your network’s access point.
  3. Enable a captive portal for your network. Go to your network’s access point’s setup menu and find the option to enable it under “captive portal” or “global configuration.” If you can’t find the feature, you’ll need to upgrade your access point to a model that supports it.
  4. Customize your portal settings. You’ll be able to name your portal, protect it with a password, and choose to redirect it to an existing web page.
  5. Customize what your customers see when they attempt to access your wifi network. This also allows you to determine how to authorize guests.
  6. Associate your captive portal with a wireless radio band to control customer access, and with an SSID profile to allow guest access.
  7. Use a Wi-Fi enabled device to test.

How To Use a Captive Portal as a Marketing Tool

What a captive portal is for guest users and for businesses has taken on a whole new meaning. As a marketing platform, it helps companies to enhance guest user experience, capture relevant customer data to better understand regular clients, and give customers more options to engage with them.

Enhance the Guest Experience

A captive portal can give you key insights about the people who support your business. You can collect relevant and actionable marketing information from guests who log into your Wi-Fi network. Now you can utilize this to analyze metrics based on daily, weekly, and monthly network traffic and compare the business performance of multiple locations based on guest data.

Bolster Your Brand Image

With guest information collected from your login page, you can create a mailing list and ask customers for feedback. Your app will also allow you to manage all your reviews so you can publish positive ones to strengthen your online presence and divert negative reviews through an internal feedback form.

Encourage Customer Loyalty

Your captive portal can be used as a smart marketing tool that lets you customize customer engagement. Send personalized emails during birthdays. Coffee shops can use customer rewards for loyal patronage and start campaigns that increase the number of returning customers.

The Benefits of Using a Captive Portal

Now that you understand what captive portals are, let’s take a look at captive portal benefits and why you should start using one to enhance your guest services.

What is a captive portal - Messaging

  1. Use a captive portal landing page to require users to agree with your Terms of Service. As you have no control over how your guest’s HTTP requests are used, this measure will protect you from liability in case a guest engages in illegal, malicious, or destructive online activities.
  2. Provide granted access to verified customers. You can make sure that only paying customers can use the internet by providing them with the password (and, sometimes, a customized username) on their receipt or together with their key card, for example.
  3. Control bandwidth allocation. A captive portal also lets you customize time limits for use per device or customer, limit the number of devices that can connect (per hotel room, for example), and prevent bandwidth hogging. You can program your portal page to enable “bandwidth throttling” or “traffic shaping” and limit the size of downloaded files, the download speed for large files, the number of downloads per session, or even block sites that are commonly accessed to download large files.
  4. Take advantage of Wi-Fi marketing options for your business. A captive portal is a web page that now has expanded uses for seamless marketing. As a marketing platform, this splash page can be used for customer surveys or reviews, sponsored ads, ongoing or upcoming promotions, and social media engagement, among others.


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