a.nel.cloudflare.com: Cloudflare’s Network Tracker Revealed | Privacy Auditor

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a.nel.cloudflare.com: Cloudflare’s Invasive Network Monitoring

Cloudflare’s domain, a.nel.cloudflare.com, is part of its Network Error Logging (NEL) system, tracking your online activity and errors to profile your browsing. This invades your privacy. Here’s what you need to know and how to resist.

What Is a.nel.cloudflare.com?

This tracker is tied to Cloudflare’s NEL feature, monitoring network performance and errors on sites using Cloudflare. It collects data for diagnostics, but also builds a record of your online behavior.

Data It Collects

When you visit a Cloudflare-protected site, it grabs:

  • IP Address: Ties your activity to a specific location.
  • Browsing Behavior: Logs URLs and page load times.
  • Error Data: Captures errors like ‘404 Not Found’.
  • Device Info: Notes browser and OS (e.g., ‘Safari 17.0, macOS 14.2’).
  • Network Info: Records connection type and latency (e.g., ‘Wi-Fi, 120ms’).
  • Timestamps: Marks exact timing of actions.
  • Session ID: Links actions within a session.
  • Cookie IDs: Tracks across Cloudflare-enabled sites.

This creates a detailed log of your web activity.

Who Gets Your Data?

Cloudflare shares your information with:

  • Website Owner: Using Cloudflare for analytics and error reporting.
  • Third-Party Partner: Integrated with Cloudflare services.
  • Cloud Infrastructure Provider: Processing network logs.
  • Government Entity: Cloudflare complies with legal data requests.

How to Protect Yourself

Privacy Auditor stands with you against tracking. Here’s how to block Cloudflare’s reach:

  • Use a VPN: Mask your IP with Mullvad or similar.
  • Block Trackers: Stop a.nel.cloudflare.com with Privacy Auditor tools.
  • Privacy Browser: Use Tor or Firefox with strict settings.
  • Disable JavaScript: Limit error reporting by disabling scripts.

Stack these protections to keep your data private.

Sources

Warning

The a.nel.cloudflare.com tracker captures invasive data like IP address and browsing behavior. Protect yourself with Privacy Auditor’s blockers and a VPN like Mullvad.

Explore More Privacy Tips

This is a legal disclaimer. All information is provided for educational purposes only.

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