Why does my IP checker and DNS leak test show different IP addresses?

An IP checker shows your public IP address, which websites see when you connect to the internet. A DNS leak test shows the IP addresses of the DNS resolvers answering your DNS queries. These usually belong to different networks or providers, so the IPs displayed will not match.

What does an IP checker actually detect?

An IP checker detects your public-facing IP address, your ISP or VPN provider, your approximate geolocation, and whether your device is using IPv4 or IPv6. This is your identity on the internet that websites can see.

What does a DNS leak test actually detect?

A DNS leak test detects which DNS resolvers are handling your DNS lookups. It shows the resolver's IP address, location, and organization, helping you determine whether your DNS queries are being sent through your VPN or leaking to your ISP.

How do I know if my DNS is leaking when using a VPN?

If your IP checker shows a VPN location but the DNS leak test shows your actual ISP or a resolver located in your home country, your DNS is leaking. This means your browser's DNS requests are not routed through the VPN tunnel.

Is it normal for DNS and IP checker results to be different?

Yes. Your public IP and your DNS resolver IP are usually different because they serve different purposes. The public IP identifies your internet connection, while the resolver IP belongs to the server that translates domain names into IP addresses for you.

Can DNS affect my public IP address?

No. DNS does not change your public IP address. DNS only provides the IP address of the server you want to reach. Your public IP is assigned by your ISP or VPN and is unrelated to your DNS provider.

IP Checker vs DNS Leak Test: Why They Show Different Results

IP checkers and DNS leak tests often display different IP addresses, leading many users to believe something is wrong with their network or VPN. In reality, these tools measure completely different parts of your internet connection. This guide explains what each tool does, how DNS fits into the picture, and how to know when your DNS is leaking.

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What Is DNS and Why Does It Show an IP Address?

DNS (Domain Name System) is the system that converts human-readable domain names into IP addresses. Before your browser can load any website, it must first ask a DNS server: “What is the IP address of this domain?” The DNS server responds with the website’s IP.

Because DNS servers handle your lookups, DNS tools sometimes show the DNS resolver’s IP address. This IP does notrepresent you — it represents the server answering your DNS queries. That’s why the IP shown in a DNS test is often completely different from the IP shown by an IP checker.

Understanding this difference is key to avoiding confusion and correctly interpreting both tools.

What an IP Checker Actually Measures

An IP checker identifies your public-facing IP address — the one websites and online services see when your device connects to the internet.

An IP checker tells you:

Your current public IP address
Whether your connection uses IPv4, IPv6, or both
Your ISP or VPN provider (via ASN)
Your approximate geolocation (country or city)

This is your “identity” on the internet. If you connect through a VPN, the IP checker should show the VPN server’s IP instead of your real one.

What a DNS Leak Test Measures

A DNS leak test shows which DNS servers are resolving your domain lookups. Instead of identifying your device, it reveals who is answering your DNS questions.

A DNS leak test tells you:

The IP addresses of DNS resolvers being used
Which organization controls them (ISP, VPN, Cloudflare, Google, etc.)
Your DNS resolver’s location
Whether your DNS traffic is leaking outside a VPN

A DNS leak occurs when your VPN hides your public IP, but your DNS requests still go through your ISP — revealing your true location or identity.

IP Checker vs DNS Leak Test: Key Differences

Although both tools display IP addresses, they measure entirely different layers of your connection. The table below highlights the differences clearly.

IP Checker

Shows your public IP (your online identity)
Determines your ISP, city, and network
Reflects your VPN server’s IP if connected
Used for geolocation and identity checks

DNS Leak Test

Shows the DNS resolver IP (not yours)
Reveals who is handling your DNS lookups
May expose your real ISP even if VPN is on
Used to detect privacy leaks or VPN misconfiguration

In short, an IP checker identifies you, while a DNS leak test identifies the servers you rely onto translate domain names into IP addresses.

How to Tell If Your DNS Is Leaking

A DNS leak occurs when your DNS traffic bypasses your VPN and goes directly to your ISP, exposing your true identity despite having a different public IP.

You may have a DNS leak if:

Your IP checker shows a VPN location
But your DNS leak test shows your home ISP
Or your DNS resolver is in your actual country instead of the VPN location

For non-VPN users, seeing your ISP in a DNS test is normal. For VPN users, it is a sign that DNS is not routed correctly through the encrypted tunnel.

Want to Check How Your Connection Appears Online?

Start by checking your public IP address, then compare it with a DNS leak test to understand how your DNS and IP identity work together.

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