Privacy Policy

1. Information Collection

1.1 Types of Information We Collect

Asphalt Calculator is a pure front-end application. We promise:

• Not to collect personal identity information: We do not require users to register accounts, nor do we collect names, emails, or phone numbers
• Not to store calculation data: All calculations are done locally in your browser, and calculation data will not be sent to our servers
• Not to use tracking technology: We do not use any personal identity tracking technology

1.2 Possible Technical Information Collected

To improve service quality, we may collect the following non-personal identity technical information:

• Browser type and version
• Operating system information
• Access time and page browsing volume
• IP address (used only for statistical analysis, not associated with personal identity)

2. Information Use

2.1 Purpose of Use

The limited technical information we collect is used for:

• Improving website performance and user experience
• Analyzing website usage and trends
• Ensuring website security and stable operation
• Technical fault troubleshooting and maintenance

2.2 Purpose Not Used for

We promise not to use the collected information for:

• Personal identity recognition or tracking
• Commercial marketing or advertising push
• Sale or sharing with third parties
• Any illegal or improper use

3. Information Storage and Protection

3.1 Data Security

We take reasonable technical and management measures to protect your information security:

• Using HTTPS for encrypted transmission
• Regular security assessment and update
• Restricting data access permissions
• Implementing data backup and recovery mechanisms

3.2 Data Retention

Since we do not collect personal information, there is no personal data retention issue. Technical statistical data will be retained for a reasonable period for website improvement and maintenance.

4. Third-Party Services

This website may use the following third-party services:

• Website Hosting Service: Used for website deployment and access
• Google AdSense: Used to display related ads, possibly using anonymous Cookies
• Content Delivery Network (CDN): Used to improve website loading speed

These third-party service providers have their own privacy policies, we recommend you review the relevant policies for details.

5. User Rights

As a user, you have the following rights:

• Information Right: Understand how we process your information
• Choice Right: Choose whether to use our service
• Deletion Right: Clear browser cache to delete local storage data
• Complaint Right: Contact us if you have any objections to the privacy policy

6. Minor Protection

We will not intentionally collect personal information from children under 13 years old. If we accidentally collect personal information from children, we will immediately delete this information.

7. Policy Update

We may update this privacy policy from time to time. We will notify you if there are significant changes. We recommend you check this policy regularly for the latest information.

8. Contact Us

If you have any questions or suggestions about this privacy policy, please contact us through the following methods:

• Visit our contact page
• Send email to: support@asphalt-calculator-online.click