> For the complete documentation index, see [llms.txt](https://docs.takionapi.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.takionapi.tech/pxhc.md).

# Perimeter X Hold Captcha (pxhc)

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**Trial and plan access is gated.** A PerimeterX bypass can be abused for fraud, so trial access is not automatic, and PXHC additionally requires your key to be whitelisted for the service. Please contact us on [Discord](https://takionapi.tech/discord) or [via mail](mailto:sales@takionapi.tech) , we'll need to verify your business first.
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Check our example bundles in order to validate your implementation against our validate ones, with correct headers order, TLS and flow from our [**Github repo**](https://takionapi.tech/examples)
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## **How to Detect if a website is Using PerimeterX Hold Captcha**

During you interactions you may encounter a WAF challenge like this one

<figure><img src="/files/iEkIKpnplb5eMJxjM15P" alt=""><figcaption></figcaption></figure>

### **Example of PerimeterX-Protected Websites**

Some applications known to use PerimeterX for websites protection include:

| [Zillow](https://www.zillow.com/)         |
| ----------------------------------------- |
| [Walmart](https://www.walmart.com/)       |
| [PrizePicks](https://www.prizepicks.com/) |
| [TextNow](https://www.textnow.com/)       |
| [SkyScanner](https://www.skyscanner.com/) |
| [StockX](https://stockx.com/)             |
| [Grubhub](https://www.grubhub.com/)       |
| [Fanatics](https://www.fanatics.com/)     |
| [Crunchbase](https://www.crunchbase.com/) |

## Our API <a href="#our-api" id="our-api"></a>

Takion automates the whole WAF challenge flow and returns the `neded cookies`alongside any other generated one during the resolution, so you can access protected sites without solving anything yourself. Continue to the reference