“Transparency, data minimization, and user control are fundamental to building trustworthy technical platforms.”

Answer-first: This Privacy Policy outlines how tanhdev.com (published and operated by Lê Tuấn Anh) collects, uses, and safeguards visitor data. We prioritize data minimization, use Google Analytics 4 with Consent Mode v2, serve personalized and non-personalized ads via Google AdSense, adhere strictly to GDPR and CCPA/CPRA regulations, and never sell personal information. For privacy inquiries, email vesviet@gmail.com.

1. Data Controller & Identity

Answer-first: Lê Tuấn Anh is the sole Data Controller for tanhdev.com. All data privacy inquiries and rights requests are handled directly by the site owner via email at vesviet@gmail.com.

  • Website URL: https://tanhdev.com/
  • Data Controller: Lê Tuấn Anh (Senior Go Backend Architect & Independent Consultant)
  • Primary Contact Email: vesviet@gmail.com
  • Geographic Scope: Based in Vietnam (UTC+7), serving a global audience across Vietnam, Southeast Asia, North America, and Europe.

2. Information We Collect & Logging

Answer-first: tanhdev.com collects non-personally identifiable log files automatically for system security, performance tuning, and traffic analytics.

Hosting & Log Files

Like standard technical websites, tanhdev.com collects system log data generated by web servers and edge networks. Information stored in hosting log files includes:

  • Internet Protocol (IP) addresses (anonymized/truncated where applicable)
  • Browser type, engine, and version
  • Internet Service Provider (ISP) and network routing details
  • Date and time stamps of requests
  • Referring and exit pages
  • Aggregate clickstream data

This data is strictly utilized for trend analysis, threat detection (e.g., rate limiting and DDoS mitigation), site administration, and server performance monitoring. Log file entries are not linked to personally identifiable information.

3. Google Analytics 4 & Consent Mode v2

Answer-first: tanhdev.com uses Google Analytics 4 (GA4) with Consent Mode v2 enabled to measure site traffic while respecting visitor privacy choices.

Consent Signals & States

We implement GA4 Consent Mode v2 to ensure measurement tags adjust dynamically based on user consent:

  • analytics_storage: Controls cookie storage for analytics modeling and performance measurement.
  • ad_storage: Controls cookie storage for advertising purposes.
  • ad_user_data: Controls whether user data can be sent to Google for online advertising purposes.
  • ad_personalization: Controls whether personalized advertising (remarketing) is enabled.

When consent is withheld, GA4 operates in a cookieless mode, transmitting un-itemized, functional pings to model traffic without reading or writing tracking cookies on visitor devices.

4. Google AdSense & Third-Party Cookies

Answer-first: Third-party advertising vendors, including Google AdSense, use cookies to serve ads based on prior visits to tanhdev.com or other websites across the web.

Advertising Cookies & DART Framework

  • Google’s use of advertising cookies enables it and its partners to serve ads to users based on their visit to tanhdev.com and/or other sites on the Internet.
  • Users may opt out of personalized advertising by visiting Google Ads Settings.
  • Alternatively, visitors can opt out of third-party vendor use of cookies for personalized advertising by visiting www.aboutads.info or Network Advertising Initiative.

Managing Browser Cookies

Visitors can choose to disable cookies through individual browser options. Detailed information about cookie management with specific web browsers can be found at the browsers’ respective websites (e.g., Chrome, Firefox, Safari, Edge).

5. Data Retention Policy

Answer-first: We enforce clear retention limits: server logs are purged after 90 days, GA4 analytics records are retained for 14 months, and direct emails are kept only while resolving inquiries.

Data TypePurposeRetention PeriodPurge Action
Server Log FilesSecurity & DDoS DefenseUp to 90 daysAutomated deletion
GA4 Analytics DataTraffic Analysis14 months (Google default)Automated expiration
Email CommunicationsTechnical Inquiries & ConsultingDuration of active inquiry/engagementManual or requested deletion

6. User Data Protection Rights (GDPR & CCPA/CPRA)

Answer-first: We fully support visitor privacy rights under the European Union General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA/CPRA).

European Union (GDPR) Data Rights

Every user in the European Economic Area (EEA) is entitled to the following rights:

  • Right to Access: Request copies of your personal data held by us.
  • Right to Rectification: Request correction of inaccurate or incomplete data.
  • Right to Erasure (“Right to be Forgotten”): Request deletion of your personal data under certain conditions.
  • Right to Restrict Processing: Request restriction of processing under specified circumstances.
  • Right to Object to Processing: Object to our processing of your personal data.
  • Right to Data Portability: Request transfer of collected data to another organization or directly to you.

California Resident (CCPA/CPRA) Rights

California consumers have the right to:

  • Right to Know: Request disclosure of categories and specific pieces of personal information collected.
  • Right to Delete: Request deletion of personal information collected from the consumer.
  • Right to Opt-Out of Sale/Sharing: tanhdev.com does NOT sell or share personal information to third parties for monetary or valuable consideration.
  • Right to Non-Discrimination: Receive equal service and pricing regardless of exercising privacy rights.

How to Exercise Your Rights

To exercise any of these privacy rights, contact us via email at vesviet@gmail.com with the subject line “Data Privacy Request”. We respond to all verified requests within 30 calendar days.

7. External Links & Third-Party Platforms

Answer-first: tanhdev.com contains links to external technical platforms (such as GitHub, LinkedIn, and external technical documentation); we are not responsible for the privacy practices of external websites.

Our content frequently links to third-party services, including:

We encourage visitors to review the privacy policies of any third-party website they visit.

8. Policy Updates & Contact Information

Answer-first: Updates to this Privacy Policy are posted on this page with a revised lastmod date. Continued use of tanhdev.com constitutes acceptance of updated policy terms.

For privacy queries, data requests, or compliance feedback: