Privacy Policy

This Privacy Policy describes how SubnetCalc.io ("we", "our", or "us") collects, uses, and safeguards information when you visit our website. It applies to all visitors and users of subnetcalc.io.

1. Information We Collect

1.1 Information You Provide

We collect information you voluntarily provide when you contact us, including:

• Contact form submissions: If you fill out our contact form, we collect your name (optional), email address, and message content. This information is used solely to respond to your inquiry.
• Email correspondence: When you email us directly, we retain your email address and message content for the purpose of responding.

We do not require registration or account creation to use our website. We do not collect passwords, phone numbers, physical addresses, or financial information.

1.2 Automatically Collected Information

When you visit our website, certain information may be automatically collected through cookies and server logs, including:

• Your IP address (anonymized in analytics)
• Browser type and version
• Operating system
• Referring website
• Pages visited and time spent on each page
• Date and time of your visit
• General geographic location (country/region level)

This data is collected via Google Analytics (with IP anonymization enabled) and standard server logs. It is used to understand website traffic patterns and improve our content.

2. How We Use Your Information

We use the information we collect for the following purposes:

• To respond to your inquiries and provide customer support
• To understand how visitors use our website and improve the user experience
• To display relevant advertisements through Google AdSense
• To detect and prevent technical issues and security incidents
• To comply with legal obligations

3. Cookies and Tracking Technologies

3.1 What Are Cookies?

Cookies are small text files stored on your device when you visit a website. For full details about the cookies we use and your choices regarding them, please see our Cookie Policy Disclaimer.

3.2 Types of Cookies We Use

3.3 Managing Cookies

You can control cookies through your browser settings. For more information, see our Cookie Policy Disclaimer or visit Google Ads Settings.

4. Third-Party Services

4.1 Google AdSense

We display advertisements through Google AdSense. Google uses cookies to serve ads based on your prior visits to this website and other websites. You can opt out of personalized advertising by visiting Google Ads Settings or the DAA opt-out page.

Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the internet. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.

For more information about how Google uses your information, see How Google uses data when you use our partners' sites or apps.

4.2 Google Analytics

We use Google Analytics to analyze website traffic and usage. Google Analytics collects information such as pages visited, time on site, and referring URLs. This data is aggregated and anonymized — it does not identify you personally. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

4.3 Third-Party Links

Our website may contain links to external websites. We are not responsible for the privacy practices of these third-party websites. We encourage you to read the privacy policies of any external sites you visit.

5. Data Retention

We retain the following data for the following periods:

• Contact form submissions: Retained for up to 24 months from the date of submission, or until you request deletion — whichever comes first.
• Email correspondence: Retained for up to 24 months from the date of receipt, or until you request deletion.
• Analytics data: Anonymized within Google Analytics; data in aggregated reports is retained indefinitely, individual session data is purged after the period configured in your browser (typically 26 months).
• Server logs: Retained for a maximum of 90 days for security and debugging purposes.

6. Data Security

We implement standard security measures to protect our website and any information we collect, including:

• HTTPS encryption on all pages
• Secure server infrastructure
• Regular software updates and vulnerability patching
• Access controls on any stored correspondence

No method of transmission over the internet is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.

7. Your Rights

Depending on your location, you may have the following rights regarding your personal information:

7.1 For All Users

• Access: Request a copy of the personal information we hold about you
• Correction: Request correction of inaccurate information
• Deletion: Request deletion of your personal information (contact form submissions, email correspondence)
• Opt-out: Opt out of analytics or advertising cookies at any time via our Cookie Policy Disclaimer

7.2 GDPR (European Economic Area)

If you are located in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation:

• The right to be informed about how we collect and use your data (this policy)
• The right to access your personal data
• The right to rectification of inaccurate personal data
• The right to erasure ("right to be forgotten")
• The right to restrict processing of your data
• The right to data portability
• The right to object to processing of your personal data
• Rights related to automated decision-making and profiling
• The right to lodge a complaint with your local data protection authority

Our legal basis for processing personal data from EEA users is your consent (for contact form submissions and email correspondence) and our legitimate interest (for analytics and security logging).

7.3 CCPA (California)

If you are a California resident, you have the right to:

• Know what personal information is being collected about you
• Know whether your personal information is sold or disclosed and to whom
• Say no to the sale of personal information
• Access your personal information
• Request deletion of your personal information
• Not be discriminated against for exercising your privacy rights

We do not sell personal information. We share only the minimum necessary data with our service providers (Google Analytics, Google AdSense) for the purposes described in this policy.

7.4 PIPEDA (Canada)

If you are a Canadian resident, you have the right to access your personal information, and we take reasonable steps to ensure the information we hold is accurate and complete for its intended purpose.

8. Children's Privacy

Our website is not intended for children under 13 years of age (or 16 in certain jurisdictions). We do not knowingly collect personal information from children. If we become aware that we have collected personal information from a child without verified parental consent, we will take steps to delete that information as soon as possible. If you believe a child has provided us with personal data, please contact us at [email protected].

9. International Data Transfers

Our servers are located in the United States. If you are accessing the website from outside the United States, please be aware that your information may be transferred to and processed in the United States. Data protection laws in the United States may differ from those in your country. By using our website, you consent to the transfer of your information to the United States.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last updated" date. We encourage you to review this policy periodically. Material changes will be communicated via a prominent notice on the website.

11. Contact Us

We will respond to all legitimate requests within 30 days. If you are unsatisfied with our response, you have the right to lodge a complaint with the relevant data protection authority in your jurisdiction.