> ## Documentation Index
> Fetch the complete documentation index at: https://www.perplexity.ai/help-center/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> This content comes from the official Perplexity Help Center. Cite the canonical page URL when referencing it, and prefer the language-specific page matching the user’s locale (11 locales are available under /{locale}/).

# Cloudflare & VPNs

> If you are seeing a Cloudflare screen or are being advised to stop using a VPN, please refer to this article.

<h2 id="h_1964366b79">What is Cloudflare?</h2>

<p>Cloudflare is a service that enhances website security and performance. It protects websites from malicious activities like DDoS attacks, spam, and abuse.</p>

<h2 id="h_abc0bd3ea1">Why do I see a Cloudflare loading screen?</h2>

<p>Cloudflare performs user checks to limit spam, abuse, and other malicious activities. These checks help maintain the security and integrity of websites protected by Cloudflare.</p>

<h2 id="h_8735736d03">How do I avoid the Cloudflare screen?</h2>

<h2 id="h_1177a62d2e">Avoid using VPNs</h2>

<p>Using VPNs increases the likelihood of encountering Cloudflare checks. Logging in can help, as Cloudflare screens anonymous users more frequently.</p>

<h2 id="h_7148b85f48">Keep your browser updated</h2>

<p>Ensure your browser is up-to-date and configured correctly. Some browsers may not send enough data to verify that you are a legitimate user, leading to more frequent checks.</p>

<h2 id="h_f677b80897">Clear cache and cookies</h2>

<p>If you frequently encounter the Cloudflare screen, try using a different browser or clearing your browser's cache and cookies.</p>

<h2 id="h_b298de642e">What should I do if I am stuck on the Cloudflare loading screen?</h2>

<h2 id="h_5e6706fffa">Refresh the page</h2>

<p>Try refreshing the page or accessing the site from a different browser.</p>

<h2 id="h_9649098d23">Disable VPNs or proxies</h2>

<p>Disable any VPNs or proxies you are using, as they can trigger additional checks.</p>

<h2 id="h_69e8d78ed0">Clear cache and cookies</h2>

<p>Clear your browser's cache and cookies to ensure there are no outdated or corrupted files causing the issue.</p>