# IP Checker
ProxyShard IP Checker is a free tool for checking your IP address, geolocation, browser data, WebRTC leaks, and a unique browser profile quality score.
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## Main fields
### My IP
Your current external IP address that all websites see. A country flag and copy button are shown next to it. If the proxy is connected correctly, this should be the proxy server IP, not your real address.
### Browser Score
A numeric score showing how many anonymity issues were detected. **The lower, the better.**
{% hint style="info" %}
Click **"View details"** to see the full report for each parameter.
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***
## General IP Info
### Provider
The name of the internet provider (ISP) that owns your IP. For example: `WYOCORE TECHNOLOGIES LLC`. If you use a proxy, this field will show the proxy server provider.
### WebRTC IP
{% hint style="danger" %}
This is the most important field. If **"WebRTC is leaked"** is displayed, your real IP is visible to websites while the proxy is active. More details: [How a WebRTC leak works](/eng/our-products/about-udp/how-webrtc-leak-works.md)
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WebRTC is a browser protocol for p2p connections. It can expose the real IP bypassing proxies and VPNs. This field shows the IP detected by WebRTC. If it differs from **My IP**, there is a leak.
| Status | What it means |
| ------------------- | ------------------------------------------- |
| `WebRTC is leaked` | A leak was detected; the real IP is visible |
| `WebRTC is blocked` | WebRTC is blocked; there is no leak |
| *(empty field)* | WebRTC was not detected; there is no leak |
{% hint style="warning" %}
Under normal conditions, WebRTC should display the proxy IP address itself.
{% endhint %}
### Fake ISP
Checks whether the provider is "fake". This is common for some VPN services that mask their origin. `No` means the provider is real.
### Host
Reverse DNS record for your IP (PTR record). Shows which domain name is linked to the address.
### Anonymizer
Determines whether your IP belongs to known anonymizing infrastructure: VPN, proxy, or Tor. `No` means the IP is not listed in anonymizer databases.
***
## Browser Status Report
Opened with the **"View details"** button. Shows detailed browser and network analysis results grouped by severity level:
| Level | What it means |
| ------------ | ---------------------------------------------- |
| **Critical** | Critical leak; real data is definitely exposed |
| **High** | Serious issue; high deanonymization risk |
| **Medium** | Medium risk; suspicious parameter |
| **Low** | Low risk; minor mismatch |
| **Info** | Informational; does not affect anonymity |
### Checked parameters
#### ISP / Connection type
Determines the IP address type: `residential` (home), `datacenter/hosting` (data center), or `mobile`. Datacenter addresses are marked as `medium` because they are easily detected by websites with strict anti-bot policies.
> Example: `ISP: IP 156.226.202.211 - datacenter/hosting (WYOCORE TECHNOLOGIES LLC), ASN AS214413`
{% hint style="info" %}
**This is typical for Datacenter proxies. If you use ISP\Residential\Mobile proxies, this parameter should not show anything related to Datacenter.**
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#### WebRTC Leak
Checks whether the browser exposes the real IP through the WebRTC API. If an IP different from the proxy is detected, the level is `critical`.
#### Timezone
Compares the browser time zone (`Intl.DateTimeFormat`) with the IP geolocation. If they do not match (for example, the IP is from Germany while the browser shows UTC+3), this indicates proxy usage.
#### Language
Checks the browser's `navigator.language` and `navigator.languages`. If the browser language (for example, `ru-RU`) does not match the IP country, anti-fraud systems will notice it.
#### Screen Resolution
Analyzes screen resolution and aspect ratio. Non-standard values may indicate a virtual machine or a headless browser.
#### Canvas Fingerprint
Draws a hidden element on the page and reads its pixel hash. Each device renders it slightly differently, which creates a unique fingerprint. A modified or empty Canvas is a sign of an antidetect browser.
#### WebGL / GPU
Reads graphics card information through the WebGL API: `RENDERER` and `VENDOR` (for example, `ANGLE (NVIDIA GeForce RTX...)`). This can expose real hardware and help identify the device.
#### Audio Fingerprint
Generates an audio signal through `AudioContext` and reads its hash. It works on the same principle as Canvas: it creates a unique fingerprint for each device. Antidetect browsers replace this value.
#### Automation / WebDriver
Checks automation indicators:
* `navigator.webdriver` - this flag is set by Selenium, Puppeteer, and Playwright
* `chrome.runtime` and other CDP artifacts
* Non-standard `window` properties
If detected, the level is `high` or `critical`.
#### Fonts
Detects the list of installed fonts through CSS and Canvas. The font set is unique for each OS and user and is used for identification even when the IP changes.
#### Cookies / localStorage
Checks whether cookies and `localStorage` are enabled in the browser. Disabled storage is atypical behavior, usually seen in special configurations.
#### Do Not Track (DNT)
Reads the `DNT` header value. It is not critical by itself, but it is part of the overall browser fingerprint.
#### Geolocation API
Checks whether `navigator.geolocation` is available and how it correlates with IP geolocation. Permission to determine geolocation is not requested; the mere presence of the API is already informative.
#### Hardware Concurrency
`navigator.hardwareConcurrency` is the number of logical CPU cores. Non-standard values (for example, `1`) are typical for virtual machines.
#### Device Memory
`navigator.deviceMemory` is the amount of RAM in GB (rounded value). Together with `hardwareConcurrency`, it helps detect a VM or headless environment.
#### Platform
`navigator.platform` is the browser platform (`Win32`, `MacIntel`, `Linux x86_64`). If it does not match the User-Agent, this is a clear sign of data spoofing.
#### Ad Blocker
Detects an ad blocker (uBlock, AdGuard, etc.) by attempting to load known advertising scripts. This is part of the overall fingerprint profile.
#### Dark Mode
Reads `prefers-color-scheme` - the dark or light OS theme. This is a small but stable fingerprint parameter.
#### Touch / Pointer
Checks `navigator.maxTouchPoints` and pointer type (`mouse`, `touch`, `pen`). If the User-Agent indicates a mobile device but no touchscreen is detected, this is a sign of emulation.
***
## How to read the result
{% hint style="success" %}
**Everything is fine:** My IP = proxy IP, WebRTC is not detected or is blocked, Browser Score = 0, ISP type = `residential`.
{% endhint %}
{% hint style="warning" %}
**Normal for Datacenter / ISP proxies:** ISP type = `datacenter/hosting`. This is expected and is not a problem for most tasks.
{% endhint %}
{% hint style="danger" %}
**Problem:** If WebRTC shows an IP different from the proxy, the leak must be fixed immediately.
We strongly recommend a universal setup for all tasks:\
ISP proxies + a good antidetect browser. Example setup: [Vision](/eng/usage-instructions/antidetect-browsers/vision-browser.md)
{% endhint %}
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.proxyshard.com/eng/our-products/ip-checker.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.