# About the UDP protocol

### **Contents**

* [How WebRTC detection works](/eng/our-products/about-udp/how-webrtc-leak-works.md)
* [How to check for WebRTC leaks or WebRTC functionality](/eng/our-products/about-udp/webrtc-leak-check-tools.md)
* [Why a TCP proxy alone is not enough!](/eng/our-products/about-udp/why-tcp-proxy-not-enough.md)
* [Software solutions for enabling WebRTC](/eng/our-products/about-udp/webrtc-software-solutions.md)
* [Why blocking WebRTC does not protect you from detection](/eng/our-products/about-udp/why-blocking-webrtc-doesnt-help.md)
* [Results of our field tests](/eng/our-products/about-udp/field-test-results.md)
* [FAQ](/eng/questions-and-answers/faq.md)

### **Introductory theory**

Modern anti-fraud systems are becoming increasingly persistent in identifying your real address or detecting the use of tools that hide your address. Even if you use a proxy or <mark style="color:purple;">VPN</mark>, they can determine that you are not a “real” user by many parameters.

One of the most common detection mechanisms is <mark style="color:purple;">WebRTC</mark>, a technology that can send requests around the proxy and therefore expose your real IP if <mark style="color:purple;">WebRTC</mark> is not blocked by the browser.<br>

The solution? Two-way <mark style="color:purple;">UDP</mark> protocol support in both proxies and software products.

{% hint style="info" %} <sup>*This article was inspired by*</sup> [<sup>*Zl0yTeam*</sup>](https://t.me/Zl0yTeam)<sup>\_ and their article\_</sup> [<sup>*“Why UDP proxies are needed and what WebRTC has to do with it”*</sup>](https://telegra.ph/Zachem-nuzhny-proksi-s-UDP-i-pri-chyom-tut-protechka-WrbRTC-v-Antike-12-19)<sup>*.*</sup>\ <sup>*It helped us significantly understand how*</sup><sup>*&#x20;*</sup><sup>*<mark style="color:purple;">WebRTC</mark>*</sup><sup>*&#x20;*</sup><sup>*works and write this article!*</sup>
{% endhint %}


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