Privacy Policy
Version 2.1
Effective date: 12 October 2026 · Last updated: 12 October 2026
The short version
YukDao · 鈺道 offers Chinese Zodiac, Five Elements, BaZi, Zi Wei Dou Shu, compatibility and Meihua / I Ching experiences. To create them we need birth details, and sometimes details about the other people you ask about.
We use that information to give you the readings you ask for. We do not sell it. We do not use it for advertising. We do not use profiles you create for other people, including children, for marketing of any kind.
Two features, compatibility follow-up questions and Meihua interpretations, use a third-party AI model. We explain below what we send to it.
Our newsletter, The YukDao Letter, is optional. You can unsubscribe at any time without affecting your account.
You can ask us to access, correct or delete your information, whichever US state or country you live in. Some deletion steps are currently handled by request rather than in your account settings. Section 12 explains what happens when you delete something.
1. Who we are
YukDao is an independently operated digital platform offering Chinese astrology, personal insights, and related services.
For privacy enquiries, data access requests, corrections, or deletion requests, please contact us at yukdao.enquiry@gmail.com.
2. What this Policy covers
This Policy explains how we collect, use, share, keep and protect personal information when you:
- visit yukdao.com;
- request a BaZi report or an I Ching (Meihua) reading, with or without an account;
- create a member account and saved profiles;
- request BaZi, Zi Wei Dou Shu, compatibility or Meihua / I Ching readings, or ask follow-up questions;
- subscribe to The YukDao Letter; or
- contact us.
It does not cover websites or services run by others, even if we link to them.
3. Information we collect
3.1 Information you give us
| Category | What it includes | Why we need it |
|---|---|---|
| Account information | Email address, sign-in credentials (managed by our authentication provider; we cannot see your password), account settings, and records of the email choices you made | To create and secure your account, and to keep a record of your choices |
| Profile information | Name or display name, relationship label (for example “self”, “partner”, “child”), sex as selected, birth date, birth time or “time unknown”, and birth place | Birth date, time and place are the inputs to Chinese calendar calculations. Sex is used in BaZi to determine the direction of luck pillars. Names and labels help you organise profiles |
| Location-derived data | Latitude, longitude and time zone of the birth place you enter | To convert birth time into the correct local solar time for chart calculation |
| Photographs | An optional avatar image for a profile | To display the profile to you. We do not analyse faces or use facial recognition |
| Questions and conversations | Questions you type into Meihua / I Ching readings and compatibility follow-ups, and the answers we generate | To answer your question and keep the conversation available to you |
| Reading requests without an account | For a BaZi report: your email address, birth details and sex as selected. For an I Ching reading: your question and the reading, linked to your browser by a private token | To create the reading and, for BaZi, email you a private link to it |
| Newsletter information | Email address, where you signed up, subscription status, and dates of subscription or unsubscription. As described in Section 7, also your main element and two supporting elements from your own BaZi chart | To send The YukDao Letter if you receive it |
| Messages to us | Anything you include when you email us | To respond and keep a record of requests |
3.2 Information we create
When you request a reading, we generate results from the information above. These include Zodiac and Five Elements results; BaZi charts, interpretations, life-cycle and luck-pillar information; Zi Wei Dou Shu charts; compatibility findings and the “Heart Score”; and Meihua castings and interpretations. Some reports are saved as a fixed “snapshot” that includes the birth details used, so that a reading stays consistent if you view it later.
Astrological results are interpretations within a cultural tradition. They are not facts about you, and we do not treat them as such.
3.3 Information collected automatically
When you use the website, our hosting provider and Google Analytics automatically receive technical information. This includes your IP address, browser and device type, pages viewed, referring page, approximate location derived from your IP address, and interaction events. Section 8 explains cookies and analytics.
3.4 Sensitive information
Some information you choose to give us may be considered sensitive under certain laws, depending on what it reveals. For example, partner profiles may reveal your relationships, and a question you type may mention your health, finances or personal circumstances. We use this information only to provide the reading or answer you requested, and as otherwise described in Section 5.2. We do not use it to infer health conditions, sexual orientation, religious beliefs, financial difficulty or other personal vulnerabilities. We do not use it for marketing or advertising. Please avoid typing details you would prefer not to share, especially about other people.
4. Information about other people
Members can create profiles for partners, family members, friends, children and others. You should add someone only if you have their permission, or another proper reason and the authority to do so, such as being a child’s parent or guardian. Please do not upload another person’s photograph without their permission, and do not upload photographs of children unless you are their parent or guardian.
We treat profiles you create for other people as follows:
- We use them only to produce the readings and reports you request, and to show them to you.
- We never add the people in them to our newsletter, contact them, or use their information for marketing, recommendations to others, advertising or audience building.
- Profiles labelled as a child, and any profile of a person under 18, are never used for personalisation or marketing of any kind.
- When you ask a compatibility follow-up question, the display names of both people are included in what we send to our AI provider (Section 6).
If you believe someone has entered information about you, you can contact us (Section 19). We will help where we reasonably can. This may include deleting the information. Because profiles are linked to another person’s account, we may need to verify your identity, and we will not disclose that person’s account details to you.
5. How we use personal information
5.1 To provide the Services you request
- Creating, securing and administering your account.
- Saving profiles and calculating charts, readings and reports.
- Geocoding birth places and determining time zones.
- Generating AI-assisted interpretations and answers (Section 6).
- Sending service emails, such as account verification, password reset and messages about your readings.
- Responding to your requests and providing support.
5.2 To operate and protect the Services
- Monitoring performance, fixing errors and keeping the Services secure.
- Preventing abuse, fraud and misuse.
- Understanding, in aggregate, how the website is used, so that we can improve it (Section 8).
- Keeping records of email choices.
- Complying with law and responding to lawful requests.
5.3 To send The YukDao Letter
If you are subscribed, we use your email address to send The YukDao Letter. It contains essays on Chinese wisdom, seasonal guidance, and news about YukDao readings and products, including occasional offers. See Section 7.
5.4 What we do not do
- We do not sell your personal information.
- We do not use your information for targeted advertising, and we have no advertising pixels on our website.
- We do not use profiles you create for other people, including children, for any marketing purpose.
- Apart from the element labels described in Section 7, we do not use your birth details, charts or readings to tailor marketing to you. No other such feature exists today (Section 17).
6. How readings are generated, including AI
Rule-based calculations. Chinese Zodiac, Five Elements, BaZi and Zi Wei Dou Shu charts are calculated using rule-based methods from the traditional calendar systems.
AI-assisted features. Two features currently use a generative AI model: compatibility follow-up questions, and Meihua / I Ching interpretations and follow-up questions. For these, we send the information needed to answer through Lovable’s AI gateway to a Google Gemini model.
- Compatibility follow-ups: we send the two people’s display names, their Four Pillars characters, element and compatibility findings, the Heart Score, the report narrative, your question, and the earlier conversation. We do not send birth dates, birth times, birth places, coordinates or time zones.
- Meihua / I Ching: we send your question, the hexagrams cast, and the earlier conversation.
We store your questions and the generated answers in our database so that you can see your conversation again. This includes I Ching readings made without an account, which are linked to your browser by a private token.
Our AI providers process this content under their own service terms, which govern whether and for how long they keep it.
AI-generated text can be wrong, incomplete or inconsistent, and it reflects an interpretive tradition, not verified fact.
7. Emails and The YukDao Letter
Service emails. We send emails needed to run your account and the Services, such as verification, password reset, security notices and messages about readings you requested. These are not marketing, and they continue while you have an account.
The YukDao Letter. The Letter is optional. At present, our account signup form includes a box to tick if you do not want to receive the Letter, and new members who leave it unticked are subscribed. We are replacing this with a box you tick only if you want to subscribe. If you were subscribed this way and do not wish to receive the Letter, use the unsubscribe link in any issue.
How we send it. We send the Letter and Journal announcements through Beehiiv and through our email delivery service (Lovable’s email service, which uses Resend). We share your email address, subscription status and sign-up source with Beehiiv for that purpose.
Element-tailored emails. If you have a BaZi chart for your own profile, it identifies a main element and two supporting elements (for example “Water”, supported by “Metal” and “Wood”). At present, if you are subscribed and have a BaZi chart for your own profile, we store your main element and two supporting elements with your subscription, share them with Beehiiv, and may use them to choose which emails you receive. We are changing this to an optional setting that is off unless you turn it on. To have your element labels removed now, contact us.
We only ever use elements from your own profile, never from profiles you created for other people. We never share birth dates, birth times, birth places, full charts, luck pillars, questions, photographs or anything about other people’s profiles with Beehiiv.
Unsubscribing. Every issue contains an unsubscribe link that works without signing in. Unsubscribing stops promotional emails. It does not delete your account or readings. We keep a minimal record that you unsubscribed so that we do not email you again by mistake.
Email measurement. Like most email services, Beehiiv may record whether an email was opened and which links were clicked.
10. Selling, “sharing” and targeted advertising
We do not sell personal information. We do not “share” personal information for cross-context behavioural advertising, as California law uses that term. We do not process personal information for targeted advertising. We have not done so in the past 12 months.
11. How long we keep information
We keep personal information only for as long as we need it for the purposes in this Policy. We currently keep this information until it is deleted by you or at your request. Unsubscribe and suppression records are kept as long as needed to honour your choice.
12. Deleting your information
Photos. You can remove a profile photo at any time. This deletes the stored image file.
Profiles. You can delete a profile you created. Deleting a profile deletes its photo, its Zi Wei Dou Shu readings, and any compatibility report (with its follow-up conversation) that includes the profile. Please note: BaZi reports created from a profile are not currently deleted when the profile is deleted. They keep a copy of the birth details and chart, and remain reachable through their private link. To have them deleted, contact us at yukdao.enquiry@gmail.com. We are changing this so that they are deleted with the profile.
Individual readings. Contact us to delete an individual report or reading.
Your account. To delete your account, email yukdao.enquiry@gmail.com from the address on the account. We will delete your profiles, readings, reports, photos and conversations, and unsubscribe you from the Letter. We keep only a minimal suppression record so that we do not email you again.
If you do not have an account. If you requested a BaZi report or subscribed without an account, contact us from the same email address and we will delete what we hold. I Ching readings made without an account are linked only to a private token in your browser, not to your name or email. Send us the reading’s link and we will do our best to locate and delete it.
13. How we protect information
We use administrative, technical and physical safeguards appropriate to the information we hold. These include:
- database access rules that limit each member to their own records;
- ownership checks before reports can be viewed through your account;
- private storage for profile photos, viewable only through links that expire after 60 minutes;
- passwords stored by our authentication service in encrypted form, never in plain text; and
- restricting administrative access to authorised systems and personnel.
Our systems can technically access stored records to run the Services. That access is limited to server-side functions and authorised operations. No method of storage or transmission is completely secure, and we cannot guarantee absolute security. If a security incident affects your personal information, we will notify you and authorities as required by law.
14. Your choices and rights
Wherever you live, you can ask us to:
- access the personal information we hold about you, and receive a copy in a portable format;
- correct information that is inaccurate. You can also edit most profile details yourself;
- delete your personal information (Section 12);
- stop marketing emails at any time (Section 7); and
- ask questions about how we handle your information.
How to make a request. Email yukdao.enquiry@gmail.com from the email address on your account, or describe your relationship to the information if you do not have an account. If we need longer than usual to respond, we will tell you why. To protect you, we verify requests before acting on them, usually by confirming control of the email address on the account. We will not ask for more information than we need.
Authorised agents. You may use an authorised agent. We may ask for proof of the agent’s authority and ask you to confirm your identity directly.
Appeals. If we decline your request, you can ask us to reconsider by replying with “Appeal” in the subject line. If you remain unsatisfied, you may contact your state attorney general or data protection authority.
No discrimination. We will not treat you differently for exercising your privacy rights.
14.1 Additional information for residents of certain US states
In the past 12 months we have collected the following categories of personal information, as defined in the California Consumer Privacy Act:
| Category | Examples | Disclosed for a business purpose to |
|---|---|---|
| Identifiers | Name, email address, IP address, account ID | Service providers (Section 9) |
| Characteristics of protected classifications | Sex and age (from birth date) | Hosting provider; AI provider only as described in Section 6 |
| Internet or other electronic activity | Pages viewed, interactions | Hosting and analytics providers |
| Geolocation data | Approximate location from IP address; birth-place coordinates you provide | Hosting, analytics and geocoding providers |
| Audio, electronic, visual or similar information | Profile photographs | Hosting provider |
| Inferences | Zodiac, Five Elements and chart results | Hosting provider; AI provider; Beehiiv (element labels only, Section 7) |
| Sensitive personal information (possible) | Information in profiles or questions that may reveal health, relationships or other sensitive matters | Hosting provider; AI provider as described in Section 6 |
Sources: you, the people who add profiles, your device, and our service providers. Purposes: those in Section 5. Retention: Section 11. We do not sell or share personal information (Section 10). We use sensitive personal information only to provide the Services you request and for security and other purposes permitted by law, not to infer characteristics about you.
15. Children
YukDao is for adults. You must be 18 or older to create an account, and our Services are not directed to children. We do not knowingly collect personal information from anyone under 18. If we learn that an account belongs to someone under 18, we will close it and delete its information.
Adult members may create profiles for their own children or other young people, for example to explore a family compatibility reading. Section 4 explains how we limit the use of those profiles. Child profiles are never used for marketing, personalisation or advertising, and we discourage uploading children’s photographs. If you are a parent or guardian and believe a child’s information has been provided to us inappropriately, please contact us and we will delete it.
16. International users
Our service providers may process information in the United States and other countries. Data protection laws in those countries may differ from those where you live.
17. Features we may add later
We may later offer optional features such as choosing topics you care about (for example Love & Relationships or Career & Purpose), or recommendations of readings and products based on your own chart. These features are not available today. We will not switch them on for you automatically. Before launching any of them, we will update this Policy and ask for your choice in a separate, clear way. Profiles you create for other people will not be used for these features.
18. Changes to this Policy
We may update this Policy as our Services change. We will post the new version with a new effective date. If we make a material change, we will give you notice before it takes effect, for example by email or a notice when you sign in. If we want to use information we already hold in a materially different way, we will ask for your consent first.
19. Contact us
YukDao
Email: yukdao.enquiry@gmail.com
