What is a Proxy Checker?
Think of the internet like a post office. Usually, you send a letter directly. But if you use a Proxy, you give your letter to a "middleman" who sends it for you. A Proxy Checker acts like a detective that looks at the envelope for any extra stamps or handwriting left by that middleman. AirOI Checker scans for these hidden marks to tell you if your connection is direct or hidden behind a server.
Wait, I'm using a VPN!
A VPN is a type of high-security proxy. A good VPN should be "Elite," meaning it leaves zero stamps on your data. If our tool detects "Proxy Headers" while your VPN is on, it means your VPN provider is being "lazy" and leaking information about your connection.
The 3 Levels of Proxy Anonymity
Not all proxies are created equal. Here is how they rank:
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3
Transparent Proxy: These provide zero privacy. They hide nothing and actually tell the website your real home IP address!
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2
Anonymous Proxy: These hide your real IP, but they tell the website, "I am a proxy server." Many sites (like Netflix) block these.
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1
Elite Proxy: The best of the best. They hide your IP and hide the fact that they are a proxy. You look like a normal home user.
Frequently Asked Questions
Can websites block me for using a proxy?
Yes. Banks, streaming services, and online stores often block "Anonymous" proxies because they are frequently used for fraud or to bypass regional pricing.
What is the "X-Forwarded-For" header?
This is the most common "leak" header. It's a note that says, "I am a proxy, and the person who sent this originally is at [Your Real IP]." Our tool catches this instantly.
Is this tool free on AirOI Checker?
Absolutely! 100% Free. We want to help you verify that the privacy services you pay for (like VPNs) are actually doing their job.