The Ultimate Networking FAQ

An IP Address is like a unique mailing address for your device on the internet. Just like a letter needs an address to reach you, any data sent to you online (like this webpage) needs your IP address to find your device.

Your Public IP is the one, single address your entire home network uses to talk to the internet, assigned by your ISP. Your Private IP is an internal address your router gives to each device inside your home (phone, laptop, TV). The outside world never sees your private IPs.

IPv4 was designed in the 1980s and has a limit of about 4.3 billion addresses. Nobody imagined that one day billions of people would have multiple devices like phones, laptops, and smart watches, all needing an IP. We simply used them all up! This is why IPv6, with its virtually limitless addresses, is so important.

Most home users have a Dynamic IP, which is temporarily assigned by your ISP and can change from time to time (like when you restart your router). Businesses often pay for a Static IP, which is a permanent address that never changes. This is essential for hosting a website or email server.

No, this is a common myth. Your IP address can reveal your general location, usually down to the city or postal code, but it **cannot** pinpoint your specific house or apartment. The location data points to your Internet Service Provider's (ISP) local data center, not your home.

No, absolutely not. This is one of the biggest misconceptions about privacy. Incognito mode only deletes your browsing history, cookies, and site data from *your own device*. Your real public IP address remains completely visible to your ISP, the websites you visit, and any network administrator.

Yes! This is a mind-blowing fact for many. HTTPS encrypts the *content* of your traffic (like the password you enter), so your ISP can't read it. However, your ISP can still see the *domain names* of the websites you connect to (e.g., google.com, facebook.com) through DNS requests. Only a VPN can hide this information from your ISP.

WebRTC is a technology used for real-time voice and video chat in your browser. A WebRTC leak is a vulnerability where your browser can accidentally broadcast your *real* IP address, even when you are using a VPN. This completely defeats the purpose of the VPN. Our tool includes a test to check for this.

Just knowing your public IP address is generally not enough for a hacker to directly access your computer. Your router and your device's firewall act as a strong barrier. However, a skilled attacker can use your IP to scan for open ports or launch a DDoS (Distributed Denial of Service) attack to disrupt your internet connection.

It's a simple 2-step process: 1. Disconnect from your VPN and visit IPInfoPlus.com. Note down the IP address and location. 2. Connect to your VPN (choose a server in a different country). Now, refresh IPInfoPlus.com. If the IP address and location have changed to match your VPN server's location, your VPN is working!

Public Wi-Fi networks (at cafes, airports) are incredibly insecure. Hackers on the same network can easily "eavesdrop" on your unencrypted traffic and steal passwords or personal data. **Ethical Tip:** Never log into sensitive accounts (like banking) on public Wi--Fi without using a trusted VPN to encrypt your connection.

Since most home connections have a dynamic IP, the easiest way is to unplug your modem/router from the power for a few minutes (sometimes longer, like 30 minutes). When you plug it back in, your ISP will often assign you a new public IP address from its available pool. This is not guaranteed but works in many cases.

Think of it like this: A MAC address is like your device's unique serial number or fingerprint, permanently assigned by the manufacturer. An IP address is like the address of the house you are currently in. The serial number of your device never changes, but its IP address will change depending on which network (which house) it connects to.

NAT (Network Address Translation) is the brilliant technology that allows your entire house full of devices (phones, laptops, TVs), each with its own private IP address, to share a single public IP address provided by your ISP. Your router acts like a very smart receptionist (the NAT device) that manages all incoming and outgoing internet traffic, ensuring data gets to the correct device within your home.

In your home network, your router's private IP address (often 192.168.1.1 or 192.168.0.1) is the Default Gateway. It's the "door" that all devices in your house use to send information to the outside world (the internet). When your computer wants to reach google.com, it sends the request to the Default Gateway first.