Privacy Policy

Last updated: October 15, 2025

Effective date: January 1, 2025

Welcome to Dirty4, a professional anime art gallery and archival platform. We are committed to protecting your privacy and being transparent about how we handle data. This Privacy Policy explains what information we collect, how we use it, and your rights regarding your data.

1. Information We Collect

1.1 Information You Provide

Dirty4 is designed with privacy in mind. We collect minimal personal information:

• Local Storage Data: User preferences, starred items, search history, and app settings are stored locally in your browser
• No Account Required: You can use Dirty4 without creating an account or providing personal information
• Contact Forms: If you contact us, we collect your email address and message content

1.2 Automatically Collected Information

When you use our service, we automatically collect certain information:

• Usage Data: Pages visited, features used, search queries, and interaction patterns
• Device Information: Browser type, operating system, screen resolution, and device type
• Analytics Data: Anonymous statistics about how users interact with our platform
• Cookies: Small data files stored on your device for functionality and analytics

1.3 Third-Party Content

When you view images or content from external sources (Danbooru, Safebooru, etc.), those services may collect their own data according to their privacy policies.

2. How We Use Information

We use collected information for the following purposes:

2.1 Service Delivery

• Display and organize artwork from various sources
• Remember your preferences and starred items
• Provide search and filtering functionality
• Optimize application performance and user experience

2.2 Service Improvement

• Understand how users interact with our platform
• Identify and fix technical issues
• Develop new features based on usage patterns
• Improve search algorithms and content discovery

2.3 Advertising

• Display relevant advertisements through Google AdSense
• Measure ad performance and effectiveness
• Fund continued development and hosting of the platform

3. Third-Party Services

We partner with trusted third-party services to provide and improve Dirty4:

3.1 Google AdSense

We use Google AdSense to display advertisements. Google may use cookies and web beacons to:

• Serve ads based on your prior visits to this and other websites
• Measure ad performance and engagement
• Provide personalized advertising based on your interests

You can control ad personalization through Google Ads Settings and opt out of personalized advertising.

3.2 Content Delivery Networks

We use CDNs (Content Delivery Networks) to deliver images and static assets efficiently. These services may log access requests for their own operational purposes.

3.3 Analytics Services

We may use analytics services to understand user behavior and improve our platform. These services collect anonymous usage statistics.

3.4 Art Source APIs

Dirty4 displays content from public art galleries including:

• Danbooru
• Safebooru
• Other public art repositories

When you view content from these sources, you are subject to their respective privacy policies and terms of service.

4. Cookies and Tracking Technologies

We use cookies and similar technologies to enhance your experience:

4.1 Essential Cookies

Required for the website to function properly:

• Session management
• User preferences storage
• Security and authentication

4.2 Analytics Cookies

Help us understand how visitors use our site:

• Page view tracking
• User journey analysis
• Feature usage statistics

4.3 Advertising Cookies

Used by our advertising partners to show relevant ads:

• Ad personalization
• Ad performance measurement
• Frequency capping

5. Data Storage and Security

5.1 Local Storage

Most of your data (preferences, starred items, search history) is stored locally in your browser using localStorage and IndexedDB. This data:

• Never leaves your device unless you explicitly choose to sync
• Can be cleared at any time through your browser settings
• Is not accessible to us or third parties

5.2 Security Measures

We implement industry-standard security measures:

• HTTPS encryption for all connections
• Secure hosting infrastructure
• Regular security updates and monitoring
• Minimal data collection and retention

5.3 Data Retention

We retain data only as long as necessary:

• Local Data: Retained until you clear your browser data
• Analytics Data: Aggregated and anonymized after 26 months
• Contact Messages: Retained for 2 years or until resolved

6. Your Privacy Rights

You have the following rights regarding your data:

6.1 Access and Control

• Access: Review what data we have about you
• Correction: Update or correct inaccurate information
• Deletion: Request deletion of your data
• Export: Receive a copy of your data in a portable format

6.2 Opt-Out Options

• Advertising: Opt out of personalized ads through Google Ads Settings
• Cookies: Control cookies through your browser settings
• Analytics: Use browser extensions or privacy settings to block tracking

6.3 Do Not Track

We respect Do Not Track (DNT) browser signals and will honor them where technically feasible.

7. Children's Privacy

Dirty4 is designed for general audiences. We do not knowingly collect personal information from children under 13 years of age. If you believe a child has provided us with personal information, please contact us immediately.

Parents and guardians should monitor their children's internet usage and consider using parental control tools.

8. International Data Transfers

Dirty4 is hosted on servers that may be located in various countries. By using our service, you consent to the transfer of your information to countries that may have different data protection laws than your jurisdiction.

We ensure that such transfers comply with applicable data protection regulations and implement appropriate safeguards.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. When we make changes:

• We will update the "Last updated" date at the top
• Significant changes will be prominently announced on our website
• Your continued use of Dirty4 after changes constitutes acceptance

We encourage you to review this Privacy Policy periodically to stay informed about how we protect your data.

10. California Privacy Rights (CCPA)

If you are a California resident, you have specific rights under the California Consumer Privacy Act (CCPA):

• Right to Know: Request disclosure of data collection and usage practices
• Right to Delete: Request deletion of your personal information
• Right to Opt-Out: Opt out of the sale of personal information (we do not sell personal data)
• Non-Discrimination: We will not discriminate against you for exercising your rights

11. European Privacy Rights (GDPR)

If you are in the European Economic Area (EEA), you have rights under the General Data Protection Regulation (GDPR):

• Right to Access: Obtain confirmation and access to your personal data
• Right to Rectification: Correct inaccurate personal data
• Right to Erasure: Request deletion of your data ("right to be forgotten")
• Right to Restriction: Restrict processing of your data
• Right to Data Portability: Receive your data in a structured format
• Right to Object: Object to processing based on legitimate interests
• Right to Withdraw Consent: Withdraw consent for data processing

12. Third-Party Links

Dirty4 may contain links to external websites and services. This Privacy Policy applies only to Dirty4. We are not responsible for the privacy practices of third-party sites. We encourage you to review their privacy policies before providing any personal information.

13. Contact Us

14. Consent

By using Dirty4, you consent to this Privacy Policy and agree to its terms. If you do not agree with this policy, please do not use our service.

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This Privacy Policy is designed to comply with GDPR, CCPA, and other major privacy regulations. We are committed to protecting your privacy and maintaining transparency about our data practices.

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