What is a VPN and why do I need one?

A VPN (Virtual Private Network) encrypts your internet connection and masks your IP address, protecting your online privacy and allowing you to access geo-restricted content.

A DNS leak occurs when your DNS queries are sent outside your VPN tunnel, potentially exposing your browsing activity to your ISP even while using a VPN.

WebRTC leak is a browser vulnerability that can expose your real IP address even when using a VPN, through the WebRTC protocol used for real-time communication.

What personal data do websites collect about me automatically?

Websites can collect your IP address, browser type, operating system, screen resolution, language, timezone, installed fonts, and browsing behavior through cookies and tracking scripts without any form submission.

How do I check if my personal data has been leaked in a data breach?

Use haveibeenpwned.com to check if your email or phone number appeared in known data breaches. Enable breach notification alerts and change passwords for any compromised accounts immediately.

Online Privacy Guide - Protect Your Identity

1. What is an IP Address?

An IP (Internet Protocol) address is a unique numerical identifier assigned to every device connected to the internet. Think of it as your device's home address on the internet - it tells other computers where to send data when you request a website or service.

Types of IP Addresses

IPv4: The traditional format (e.g., 192.168.1.1) with about 4.3 billion possible addresses
IPv6: The newer format (e.g., 2001:0db8:85a3::8a2e:0370:7334) with virtually unlimited addresses
Public IP: Your address visible to the internet, assigned by your ISP
Private IP: Your address within your local network (home/office)

What Your IP Reveals

Your public IP address can reveal:

Your approximate geographic location (city, region, country)
Your Internet Service Provider (ISP)
Your organization (if using a corporate network)
Your browsing history (to your ISP)

Privacy Risk: Websites, advertisers, and third parties can use your IP to track your online activity and build profiles about you.

Check Your IP Address

2. VPN Guide: What, Why, and How

What is a VPN?

A VPN (Virtual Private Network) creates an encrypted tunnel between your device and a VPN server. All your internet traffic passes through this tunnel, hiding your real IP address and encrypting your data.

How VPNs Work

You connect to a VPN server (which could be in any country)
Your internet traffic is encrypted before leaving your device
The VPN server decrypts and forwards your requests to websites
Websites see the VPN server's IP, not yours
Responses travel back through the encrypted tunnel

Benefits of Using a VPN

Privacy: Hide your real IP address from websites and trackers
Security: Encrypt your data on public Wi-Fi networks
Access: Bypass geo-restrictions on content
Anonymity: Prevent ISP tracking of your browsing
Safety: Protect against certain cyber attacks

Pro Tip: Always choose a reputable VPN provider with a strict no-logs policy. Free VPNs often sell your data to third parties.

What to Look for in a VPN

No-logs policy (independently audited)
Strong encryption (AES-256)
Kill switch feature
DNS leak protection
WebRTC leak protection
Multiple server locations
Good connection speeds

3. Understanding DNS Leaks

What is DNS?

DNS (Domain Name System) is like the internet's phone book. When you type a website address (like google.com), DNS servers translate it to an IP address (like 142.250.80.46) that computers can understand.

What is a DNS Leak?

A DNS leak occurs when your DNS queries bypass your VPN tunnel and go directly to your ISP's DNS servers. Even though your web traffic is encrypted, your ISP can see which websites you're visiting through these DNS queries.

Privacy Impact: DNS leaks completely undermine your VPN's privacy protection. Your ISP can log every website you visit, even when you think you're protected.

Common Causes of DNS Leaks

Poorly configured VPN software
IPv6 traffic not being handled by VPN
Windows "Smart Multi-Homed Name Resolution"
Transparent DNS proxies by ISPs
VPN disconnections without kill switch

How to Prevent DNS Leaks

Use a VPN with built-in DNS leak protection
Configure your device to use VPN's DNS servers
Disable IPv6 if your VPN doesn't support it
Enable your VPN's kill switch
Use DNS over HTTPS (DoH) as backup

Test for DNS Leaks

4. WebRTC Leaks Explained

What is WebRTC?

WebRTC (Web Real-Time Communication) is a browser technology that enables direct peer-to-peer communication for video calls, voice chat, and file sharing without plugins. Services like Google Meet, Discord, and Facebook Messenger use WebRTC.

What is a WebRTC Leak?

WebRTC can expose your real IP address even when using a VPN. This happens because WebRTC needs to discover your actual network interfaces to establish peer-to-peer connections, bypassing VPN tunnels in the process.

Types of WebRTC Leaks

Public IP Leak: Reveals your real public IP address
Local IP Leak: Reveals your private network IP (less serious but still a fingerprinting risk)
IPv6 Leak: Reveals your IPv6 address if available

Browser Risk: Chrome, Firefox, Opera, and Edge all have WebRTC enabled by default. This means you could be leaking your real IP without knowing it.

How to Fix WebRTC Leaks

Firefox:

Type about:config in the address bar
Search for media.peerconnection.enabled
Double-click to set it to false

Chrome/Edge:

Install a WebRTC blocking extension
Or use a VPN with WebRTC leak protection

Brave:

Go to Settings > Privacy and security
Find WebRTC IP Handling Policy
Select "Disable non-proxied UDP"

Test for WebRTC Leaks

5. Privacy Best Practices

Essential Steps

Use a reputable VPN - Choose one with no-logs policy and leak protection
Test for leaks regularly - Use our DNS and WebRTC leak tests
Enable kill switch - Prevents exposure if VPN disconnects
Use private DNS - Configure DNS over HTTPS (DoH)
Block WebRTC - Disable or use browser extensions
Keep software updated - Security patches are important
Use HTTPS everywhere - Install browser extensions to force HTTPS

Advanced Privacy Tips

Use a privacy-focused browser (Firefox, Brave, Tor)
Block third-party cookies
Use ad blockers with tracking protection
Consider using Tor for maximum anonymity
Disable location services when not needed
Review app permissions regularly
Use different browsers for different purposes

Remember: Privacy is not about having something to hide - it's about having the right to control your personal information.

Our Free Privacy Tools

Use our tools to check your privacy status:

IP Address Lookup DNS Leak Test WebRTC Leak Test Speed Test

Online Privacy Guide

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