Privacy Policy
Lianxin Digital ("we") takes your privacy seriously. This policy explains how we collect, use and protect your personal information when you visit www.lianxin.ltd.
We build custom quantitative research systems and deliver them privately. The website itself offers no trading function and no account system, so what we collect is limited — only what you leave behind when you voluntarily submit an enquiry.
1. What we collect
Information you submit
When you fill in the enquiry form on our website, we receive: your name, your contact details (phone, WeChat or email — whichever you choose to give), what you are looking to build, and an optional description of your requirements. Once submitted, this is kept as a business enquiry so we can assess your needs and get back to you.
Technical records
To troubleshoot and guard against abuse, our server records the source IP address and submission timestamp when it receives a form submission. This information is never shared with third parties.
What we do not collect
We do not collect your national ID number, bank account details, trading account details or any asset credentials. The website does not ask for these, and please do not include them in the requirement description.
2. How we use it
The only purpose
Solely to: assess the scope and feasibility of your requirements, respond to your enquiry, and progress project assessment and commercial discussion.
What we never do
We do not use your information for advertising, for marketing call lists, for sharing with partners, or for commercial resale.
3. Storage and protection
Where it lives
Your submitted information is stored in our business systems. The website is deployed on servers located in mainland China, and the relevant data is not transferred across borders.
Who can access it
Only team members who need to handle your enquiry. Access is governed by our internal permission model.
How long we keep it
Enquiries are retained during commercial discussion. If no agreement is reached, they are deleted or anonymised within 12 months. You can also ask us to delete your information at any time.
4. Your rights
Access and correction
You can contact us at any time to access, correct or delete the information you submitted.
Withdrawing consent
You can ask us to stop contacting you about your enquiry at any time.
How to exercise these rights
Use the contact form on our website, or email us directly with your request. We will act on it within a reasonable period.
5. Third parties and cookies
We do not use tracking cookies
This website does not use advertising or behavioural-tracking cookies, does not run third-party analytics scripts, and does not share your browsing behaviour with third-party ad platforms.
The only browser-side storage
We use browser localStorage for one thing: your theme preference (dark or light), under the key lx-theme. That data stays in your own browser, is not readable by us, contains no identifying information, and is deleted when you clear your browser data.
External links
Links such as "Live Demo" point to third-party sites (including our own product site). How those sites handle data is governed by their own privacy policies, which this policy does not cover.
6. Minors
This website serves business customers and professional users. We do not knowingly collect personal information from minors. If we receive information submitted by a minor, we delete it after verification.
7. Updates to this policy
If this policy changes, we update the "Last updated" date on this page. Material changes to how we handle data will be notified separately.