Adobe Diddles With Your /etc/hosts File

📰 Daring Fireball

Adobe uses a clever trick to detect Creative Cloud installation by manipulating DNS entries in your hosts file, learn how to inspect and manage this

intermediate Published 9 Apr 2026

Action Steps

Inspect your /etc/hosts file to check for Adobe's DNS entry
Use JavaScript to load an image and test the detection mechanism
Configure your browser settings to block or manage such tracking attempts
Test the detection mechanism using tools like Burp Suite or Fiddler
Apply privacy-focused browser extensions to prevent similar tracking

Who Needs to Know This

Developers, security professionals, and privacy enthusiasts can benefit from understanding this technique to protect user data and maintain online security

Key Insight

💡 Adobe uses a DNS entry in your hosts file to detect Creative Cloud installation, highlighting the importance of online security and privacy measures

Key Takeaways

Adobe uses a clever trick to detect Creative Cloud installation by manipulating DNS entries in your hosts file, learn how to inspect and manage this

Full Article

“thenickdude”, on Reddit: They’re using this to detect if you have Creative Cloud already installed when you visit on their website. When you visit https://www.adobe.com/home , they load this image using JavaScript: https://detect-ccd.creativecloud.adobe.com/cc.png If the DNS entry in your hosts file is present, your browser will therefore connect to their server, so they know you have Creative Cloud installed, otherwise the load fails, which they detect. They used to just hit http://localhost:<

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