Privacy Policy

Last Updated: February 3, 2026

LitBuild (doing business as "SerpDetective") ("LitBuild", "we", "us", or "our") operates the website at https://www.serpdetective.com (the "Website") and the SerpDetective Chrome Extension (collectively, the "Service"). This Privacy Policy describes how we collect, use, disclose, and protect information about you when you access or use the Service.

This Privacy Policy does not apply to third parties that you may interact with through the Service. In particular, payments are processed by Paddle.com ("Paddle"), which acts as Merchant of Record. Paddle's privacy practices are described in Paddle's own privacy policy.

1. Scope and Definitions

"Personal Data" means information that identifies or reasonably could be linked to an individual. "Processing" means any operation performed on information, such as collection, use, storage, disclosure, or deletion.

2. Information We Collect

A. Information You Provide

We may collect information you provide directly to us, including:

Account information (such as email address; and where available, name and profile photo)
Content and inputs you submit to the Service (for example, keyword lists, saved items, and settings)
Communications with us (for example, support requests and feedback)

Summary of Categories

The table below provides a non-exhaustive summary of common categories of Personal Data, purposes, and typical legal bases (where applicable).

Category	Examples	Primary purposes	Typical legal bases (EEA/UK)
Account data	Email, name (if provided), profile photo (if provided)	Account creation, authentication, support	Contract; Legitimate interests
Usage and logs	Feature usage, timestamps, error logs	Security, debugging, improvement	Legitimate interests
Device/network	IP address, device type, browser, language	Fraud prevention, security	Legitimate interests
Extension interactions	SERP page DOM signals needed for analysis, actions you trigger	Provide extension features and analysis	Contract; Legitimate interests
Payments metadata (from Paddle)	Subscription status, transaction refs, product/price ids	Provision paid access, billing support	Contract; Legal obligations

B. Information Collected Automatically

When you use the Service, we may automatically collect certain information, including:

Device and browser information (such as device type, operating system, browser type, and language)
Log and usage information (such as feature usage, timestamps, and interaction events)
Network information (such as IP address and approximate location derived from IP)

We use this information to provide the Service, monitor performance, diagnose issues, and help prevent fraud and abuse.

C. Chrome Extension Data

The SerpDetective Chrome Extension is designed to assist with SEO analysis on search engine result pages (SERPs).

Permissions: the extension may request permission to read and change data on specific domains (for example, google.com).
Scope: the extension may read the DOM structure on supported SERP pages to extract keywords and rankings.
Limitation: the extension is not designed to track your browsing history on other websites.
Transmission: selected keywords and SERP summaries are sent to our servers only when you trigger an action such as "Save" or "Analyze".

D. Payments (Paddle)

We do not store or process your full payment card details on our servers.

Payment processing for the Service is conducted by our online reseller, Paddle. Paddle acts as the Merchant of Record for purchases and may collect and process payment details, billing address, and certain device/network information (such as IP address) to process transactions, prevent fraud, and handle applicable taxes (VAT/GST).

We may receive limited transaction metadata from Paddle (for example, subscription status, product/price identifiers, and order/transaction references) so we can provision and manage your subscription.

For more information about Paddle's data practices, please review Paddle's Privacy Policy: https://paddle.com/privacy

3. How We Use Information

We may use information we collect to:

Provide, maintain, and improve the Service
Create and manage accounts, authenticate users, and provide customer support
Provision paid features and manage subscription status
Monitor and protect the security and integrity of the Service (including fraud and abuse prevention)
Communicate with you about product updates, security notices, and administrative messages
Comply with legal obligations and enforce our terms and policies

We may also use information to:

Detect, prevent, and investigate fraud, abuse, and security incidents
Maintain records related to accounting, taxes, and compliance (including transaction records handled by Paddle)

4. Legal Bases for Processing (EEA/UK)

If you are located in the EEA or the United Kingdom, we process Personal Data under one or more of the following legal bases:

Performance of a contract (to provide the Service)
Legitimate interests (for example, securing and improving the Service, fraud prevention)
Consent (where required, for example for certain optional analytics)
Compliance with legal obligations

Where we rely on legitimate interests, those interests may include securing the Service, preventing fraud, improving features, and supporting customers. You may object to certain processing in some cases.

5. How We Share Information

We may share information as follows:

Service providers: hosting, infrastructure, and other vendors who process information on our behalf under contractual safeguards
Payment processor/Merchant of Record: Paddle for payment processing and related support
Data providers: providers used to retrieve SEO metrics and related data (where possible, we avoid sending direct personal identifiers if not required)
Legal and safety: where required by law, or to protect the rights, safety, and security of LitBuild, our users, or others
Business transfers: in connection with a merger, acquisition, reorganization, or sale of assets

We do not sell your Personal Data.

6. Cookies and Similar Technologies

We may use cookies and similar technologies to enable core functionality (such as sign-in), remember preferences, and (where enabled) understand usage in aggregate. You can control cookies through your browser settings; disabling certain cookies may limit Service functionality.

Cookies and similar technologies we may use include:

Strictly necessary cookies: for authentication, session management, and security.
Functional cookies: to remember preferences and settings.
Analytics cookies (where enabled): to understand usage in aggregate.

If analytics are enabled, we aim to use data in aggregate form and to minimize collection of direct identifiers where feasible.

7. Data Retention

We retain Personal Data for as long as reasonably necessary to provide the Service, comply with legal obligations, resolve disputes, enforce agreements, and protect the security and integrity of the Service. Retention periods may vary depending on the type of data and the purpose for which it is processed.

Examples (non-exhaustive):

Account information: retained while your account is active and for a reasonable period thereafter.
Logs and security events: retained for security, troubleshooting, and abuse prevention.
Subscription metadata received from Paddle: retained to provision access, handle customer support, and meet accounting/legal obligations.

We may retain certain information for longer where necessary to establish, exercise, or defend legal claims.

8. Security

We use reasonable administrative, technical, and physical safeguards designed to protect information. However, no security method is perfect and we cannot guarantee absolute security.

Security measures may include access controls, encryption in transit, monitoring, and operational practices intended to reduce unauthorized access.

9. Your Rights and Choices

Depending on your location, you may have rights to access, correct, delete, or object to certain processing of your Personal Data, and to request portability.

To exercise these rights, contact us at [email protected]. We may need to verify your identity and request.

Depending on your location, you may have the right to:

Access and obtain a copy of your Personal Data
Correct inaccurate Personal Data
Request deletion of Personal Data
Object to or restrict certain processing
Request portability
Withdraw consent where processing is based on consent

If you are in the EEA/UK, you may also have the right to lodge a complaint with a supervisory authority.

If you are in certain U.S. states, you may have rights to access, delete, and opt out of certain processing, subject to applicable exceptions.

10. International Transfers

If you access the Service from outside the country where we operate, your information may be transferred to and processed in other countries. Where required, we use appropriate safeguards for international transfers.

When we transfer Personal Data internationally, we may rely on contractual safeguards and other mechanisms recognized under applicable law.

11. Children's Privacy

The Service is not intended for use by individuals under 18. We do not knowingly collect Personal Data from children.

12. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. If we make material changes, we will provide notice as required. The "Last Updated" date indicates when this Privacy Policy was last revised.

13. Contact Us

For questions about this Privacy Policy or our privacy practices:

Email: [email protected]
Website: https://www.serpdetective.com
Operator: LitBuild (d/b/a SerpDetective)
Address: Building 01, Room 07, Makehui, Nanfaxin Town, Shunyi District, Beijing, China