Privacy Policy

1. Introduction & Ownership

Welcome to FileDummy (accessible at https://filedummy.ndlong.site). FileDummy operates as part of the NDL Ecosystem (ndlong.site), founded and maintained by software engineer Nguyen Dai Long.

Your privacy is of the utmost importance to us. This Privacy Policy documents the types of information that is collected and recorded by FileDummy and how we use and protect it.

2. Information We Collect

FileDummy is designed as a friction-free utility. We do not require user registration, account logins, passwords, or payment details. You can access, browse, and download sample files completely anonymously.

Like most modern web services, we automatically collect certain technical log data when you interact with our website:

• Browser type, user agent version, and operating system.
• Date, time, and referring/exit pages.
• Internet Protocol (IP) addresses (anonymized for geolocation and rate limiting).
• Requested file identifiers (to serve download redirects via Cloudflare R2).

3. Google AdSense & Third-Party Advertising Cookies

We partner with third-party advertising networks, primarily Google AdSense, to display advertisements when you visit our website. Google and its advertising partners use cookies (such as the DoubleClick cookie) to serve relevant advertisements based on a user's prior visits to FileDummy and other websites across the Internet.

Important Cookie Notice: Google's use of advertising cookies enables it and its partners to serve ads to our users based on their visit to our sites and/or other sites on the Internet.

Users may choose to opt out of personalized advertising by visiting:

• Google Ads Settings (opt-out of personalized Google ads)
• AboutAds.info Consumer Choice Tool
• Network Advertising Initiative (NAI) Opt-Out

4. Web Analytics (Google Analytics 4)

We use Google Analytics to analyze aggregated visitor trends, traffic sources, and popular file formats. Google Analytics uses cookies to gather anonymous engagement data. We have enabled IP Anonymization / IP Masking, ensuring that your full IP address is never stored on Google servers.

5. Client-Side Generator Privacy Guarantee

When utilizing our Custom Dummy File Generator tool (at /generator), all file content generation is executed 100% locally within your browser sandbox using JavaScript ArrayBuffer and Blob APIs.

✓ Zero bytes of custom generated file data or parameters are uploaded, logged, or sent to any remote server.

6. GDPR Compliance (EEA Users)

If you reside in the European Economic Area (EEA), you possess statutory data protection rights under the General Data Protection Regulation (GDPR), including:

• The right to access, update, or request deletion of your information.
• The right of rectification and data portability.
• The right to withdraw cookie consent at any time via your browser settings.

7. CCPA / CPRA Notice (California Residents)

Under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA), California residents have the right to request disclosure of categories of personal data collected and request deletion. FileDummy does not sell or share personal information with third parties for monetary consideration.

8. Children's Privacy (COPPA Compliance)

Protecting children's online privacy is paramount. FileDummy does not knowingly collect any Personal Identifiable Information from children under the age of 13. If a parent or guardian believes that a child has provided personal information on our website, please contact us immediately and we will promptly remove such information from our records.

9. Links to NDL Ecosystem & Third-Party Sites

FileDummy contains links to other developer tools in the NDL Ecosystem (such as tools.ndlong.site, image.ndlong.site, s.ndlong.site). Each site maintains its respective privacy terms adhering to NDL Network standards. We advise users to review the privacy policy of any external website they visit.