1. Introduction

ZHANGJIENING LLC operates the website located at www.zhangjiening.mom. This Privacy Policy describes how we collect, use, disclose, and safeguard your information when you visit our website or engage with our services. By accessing or using the website, you consent to the data practices described in this policy.

We take your privacy seriously. If you have any questions or concerns about this policy, please contact us at guide@zhangjiening.mom. We will respond to all legitimate privacy inquiries within thirty calendar days.

This website is developed and maintained by Zhangjiening. For technical questions about the site itself, you may reach out through the contact information provided below.

2. Information We Collect

We collect several categories of information to provide and improve our services. The types of data we gather depend on how you interact with our website and what services you request.

2.1 Information You Provide Directly

When you fill out our contact form, send us an email, or otherwise communicate with us, you may voluntarily provide the following categories of personal information:

2.2 Information Collected Automatically

When you access our website, certain information is collected automatically through standard web technologies. This includes:

2.3 Cookies and Similar Technologies

We use minimal cookies and similar tracking technologies. Our website uses:

You may configure your browser to refuse cookies or alert you when cookies are being sent. Disabling cookies may affect certain features of our website. We do not use flash cookies, web beacons, or device fingerprinting at this time.

3. How We Use Your Information

ZHANGJIENING LLC uses collected information for legitimate business purposes that are essential to delivering our computer systems design services. Specifically, we use your data to:

We do not use automated decision-making or profiling in connection with your personal data. Every interaction that requires judgment is handled by a human professional at ZHANGJIENING LLC.

4. Information Sharing and Disclosure

We do not sell, trade, rent, or otherwise transfer your personal information to third parties for their independent marketing or commercial purposes. We may share your information in the following limited circumstances:

4.1 Service Providers

We may engage trusted third-party service providers to perform functions on our behalf, such as website hosting, email delivery, and analytics. These providers receive only the information necessary to perform their specific functions and are contractually obligated to maintain the confidentiality and security of your data.

4.2 Legal Compliance

We may disclose your information if required to do so by law, court order, subpoena, or other legal process, or if we believe in good faith that disclosure is necessary to protect our rights, your safety, or the safety of others, to investigate fraud, or to respond to a government request.

4.3 Business Transfers

In the event that ZHANGJIENING LLC is involved in a merger, acquisition, or sale of all or a portion of its assets, your information may be transferred as part of that transaction. You will be notified via email and a prominent notice on our website of any change in ownership or uses of your personal information.

4.4 Aggregated and De-Identified Data

We may share aggregated, anonymized, or de-identified data that cannot reasonably be used to identify you with partners or publicly for research, marketing, or analytical purposes.

5. Data Security

ZHANGJIENING LLC implements and maintains administrative, technical, and physical safeguards designed to protect your personal information from unauthorized access, disclosure, alteration, and destruction. Our security measures include:

While we strive to use commercially acceptable means to protect your personal information, no method of transmission over the Internet or electronic storage is 100% secure. We cannot guarantee absolute security of your data.

6. Data Retention

We retain your personal information only for as long as is necessary to fulfill the purposes for which it was collected, or as required by applicable law. The specific retention periods vary depending on the nature of the data and the purpose of collection:

Data CategoryRetention Period
Contact form submissions3 years from last communication
Email correspondence5 years for business records
Website analytics data26 months, then aggregated
Cookie dataUp to 12 months
Client project data7 years after project completion
Server logs90 days, then purged

When data is no longer needed, we securely delete or anonymize it following industry-standard data destruction protocols.

7. Your Data Rights

Depending on your jurisdiction, you may have certain rights regarding your personal information. We extend these rights to all users regardless of location as our commitment to transparency:

7.1 Right to Access

You have the right to request confirmation of whether we process your personal data and, if so, to receive a copy of that data along with information about how it is used.

7.2 Right to Rectification

You may request that we correct any inaccurate or incomplete personal information we hold about you. We will respond to rectification requests within thirty days.

7.3 Right to Erasure

You may request deletion of your personal data under certain circumstances, such as when the data is no longer necessary for the purposes for which it was collected, or when you withdraw consent.

7.4 Right to Restrict Processing

You have the right to request that we limit the processing of your personal data in certain situations, such as when you contest the accuracy of the data or object to our processing.

7.5 Right to Data Portability

You may request a copy of your personal data in a structured, commonly used, and machine-readable format, and have the right to transmit that data to another controller.

7.6 Right to Object

You may object to the processing of your personal data for direct marketing purposes at any time. We will honor such objections without undue delay.

To exercise any of these rights, please contact us at guide@zhangjiening.mom. We may ask you to verify your identity before processing your request. We will not discriminate against you for exercising any of your privacy rights.

8. Children Privacy

Our website and services are not directed to individuals under the age of 18. We do not knowingly collect personal information from children under 18 years of age. If we become aware that a child under 18 has provided us with personal data, we will take steps to delete such information from our records promptly. If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately at guide@zhangjiening.mom so that we may take appropriate action.

9. International Data Transfers

ZHANGJIENING LLC is based in the United States, and our website servers are located within the United States. If you access our website from outside the United States, your information may be transferred to, stored, and processed in the United States where our servers are located and our central database is operated.

The data protection laws of the United States may differ from those of your country of residence. By using our website and providing your information, you acknowledge and consent to the transfer, storage, and processing of your data in the United States in accordance with this Privacy Policy.

We take appropriate safeguards to ensure that your personal data receives an adequate level of protection regardless of where it is processed. For data transferred from the European Economic Area, the United Kingdom, or Switzerland, we rely on standard contractual clauses or other legally recognized transfer mechanisms.

10. California Privacy Rights

If you are a California resident, the California Consumer Privacy Act (CCPA) and the California Privacy Rights Act (CPRA) grant you specific rights regarding your personal information. Under these laws, California residents have the right to:

ZHANGJIENING LLC does not sell personal information as defined under California law. We do not collect sensitive personal information beyond what is necessary to provide our services. To exercise your California privacy rights, please email us at guide@zhangjiening.mom with the subject line California Privacy Rights Request. We will verify your identity and respond within forty-five calendar days as required by law.

We have not sold or shared personal information in the preceding twelve months and have no plans to do so in the future. We do not use or disclose sensitive personal information for purposes other than those permitted under California regulations.

11. Third-Party Services and Links

Our website may contain links to third-party websites, plugins, and applications. Clicking on those links or enabling those connections may allow third parties to collect or share data about you. We do not control these third-party websites and are not responsible for their privacy statements or practices.

When you leave our website, we encourage you to read the privacy policy of every website you visit. ZHANGJIENING LLC does not endorse and is not responsible for the content, privacy practices, or terms of use of any external sites.

We may use third-party analytics services such as Google Analytics to help us understand how visitors engage with our website. These services may use cookies and similar technologies to collect information about your use of our website and report website trends without identifying individual visitors.

12. Changes to This Privacy Policy

We reserve the right to update or modify this Privacy Policy at any time to reflect changes in our practices, technology, legal requirements, or other operational needs. When we make material changes, we will notify you by:

We encourage you to review this Privacy Policy periodically to stay informed about how we are protecting your information. Your continued use of the website after any changes constitutes your acceptance of the updated policy. If you disagree with any changes, you should discontinue use of the website and contact us to request deletion of your data.

A complete history of this Privacy Policy is maintained internally and is available upon request. The version date at the top of this page indicates when this policy was last revised.

13. Do Not Track Signals

Some web browsers offer a Do Not Track (DNT) signal that indicates a user preference not to be tracked across websites. At this time, our website does not respond to DNT signals because there is no widely accepted industry standard for how to interpret and implement such signals. However, we do honor Global Privacy Control (GPC) signals as a valid opt-out request under California law, in compliance with the CPRA regulations.

We continue to monitor developments in browser privacy standards and may update our DNT practices as industry standards evolve. In the meantime, you may exercise control over tracking through your browser cookie settings or by contacting us directly.

14. Contact Information

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us using any of the following methods. We value your privacy and will respond promptly to all inquiries.

For data subject access requests, please use the subject line Data Privacy Request in your email. For California-specific requests, please use California Privacy Rights Request as described in Section 10. We may require verification of your identity before fulfilling certain requests to protect your data from unauthorized access.

This website was developed by Zhangjiening. If you encounter any technical issues with the site or have concerns about how the site handles your data, please report them through the contact channels listed above.