Terms of Service

Last Updated: November 18, 2025

1. Acceptance of Terms

By accessing and using Subnet Calculate ("the Service"), you accept and agree to be bound by the terms and provisions of this agreement. If you do not agree to these Terms of Service, please do not use the Service.

2. Description of Service

Subnet Calculate provides a free, client-side subnet calculator tool for IPv4 and IPv6 networks. The Service allows users to calculate network addresses, subnet masks, usable IP ranges, and other network-related information directly in their web browser.

3. Use of Service

3.1 Permitted Use

You may use the Service for lawful purposes only. You agree to use the Service in compliance with all applicable laws, regulations, and these Terms of Service.

3.2 Prohibited Activities

You agree not to:

• Use the Service for any illegal or unauthorized purpose
• Attempt to gain unauthorized access to any portion of the Service
• Interfere with or disrupt the Service or servers connected to the Service
• Use automated systems or software to extract data from the Service
• Impersonate any person or entity or misrepresent your affiliation
• Transmit any viruses, malware, or other malicious code
• Violate any applicable laws or regulations

4. Intellectual Property Rights

4.1 Ownership

The Service, including all content, features, and functionality, is owned by Subnet Calculate and is protected by international copyright, trademark, patent, trade secret, and other intellectual property laws.

4.2 Limited License

We grant you a limited, non-exclusive, non-transferable, revocable license to access and use the Service for personal or internal business purposes only.

5. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO:

• Warranties of merchantability, fitness for a particular purpose, or non-infringement
• Warranties that the Service will be uninterrupted, secure, or error-free
• Warranties regarding the accuracy, reliability, or completeness of calculations
• Warranties that defects will be corrected

6. Accuracy of Calculations

While we strive to provide accurate subnet calculations, we do not guarantee the accuracy, completeness, or reliability of any calculations provided by the Service. You are responsible for verifying all calculations before implementing them in production environments.

7. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, SUBNET CALCULATE SHALL NOT BE LIABLE FOR ANY:

• Indirect, incidental, special, consequential, or punitive damages
• Loss of profits, revenue, data, or use
• Damages resulting from network configurations based on calculations from the Service
• Damages arising from your use or inability to use the Service

This limitation applies regardless of the legal theory upon which the claim is based, even if we have been advised of the possibility of such damages.

8. Indemnification

You agree to indemnify, defend, and hold harmless Subnet Calculate and its officers, directors, employees, and agents from any claims, liabilities, damages, losses, and expenses, including reasonable attorneys' fees, arising out of or in any way connected with:

• Your access to or use of the Service
• Your violation of these Terms of Service
• Your violation of any third-party rights
• Any network configurations or implementations based on calculations from the Service

9. Third-Party Links and Advertisements

The Service may contain links to third-party websites and advertisements. We are not responsible for the content, accuracy, or practices of third-party websites. Your interactions with third-party websites and advertisers are solely between you and such third parties.

10. Modifications to Service

We reserve the right to modify, suspend, or discontinue the Service (or any part thereof) at any time, with or without notice. We shall not be liable to you or any third party for any modification, suspension, or discontinuance of the Service.

11. Changes to Terms

We reserve the right to update or modify these Terms of Service at any time without prior notice. Your continued use of the Service after any changes constitutes acceptance of the new Terms of Service. We encourage you to review these Terms periodically.

12. Termination

We may terminate or suspend your access to the Service immediately, without prior notice or liability, for any reason, including if you breach these Terms of Service. Upon termination, your right to use the Service will immediately cease.

13. Governing Law

These Terms of Service shall be governed by and construed in accordance with the laws of the jurisdiction in which Subnet Calculate operates, without regard to its conflict of law provisions.

14. Dispute Resolution

Any disputes arising out of or relating to these Terms of Service or the Service shall be resolved through binding arbitration in accordance with the rules of the applicable arbitration association, except where prohibited by law.

15. Severability

If any provision of these Terms of Service is found to be unenforceable or invalid, that provision shall be limited or eliminated to the minimum extent necessary, and the remaining provisions shall remain in full force and effect.

16. Entire Agreement

These Terms of Service, together with our Privacy Policy, constitute the entire agreement between you and Subnet Calculate regarding the use of the Service and supersede all prior agreements and understandings.

17. No Waiver

Our failure to enforce any right or provision of these Terms of Service shall not be deemed a waiver of such right or provision.

18. Contact Information

If you have any questions about these Terms of Service, please contact us through our website.

19. Professional Advice Disclaimer

The Service is provided for informational purposes only and does not constitute professional network engineering advice. You should consult with qualified network professionals before implementing any network configurations in production environments.

20. User Responsibilities

You are solely responsible for:

• Verifying all calculations before implementation
• Ensuring compliance with your organization's network policies
• Testing configurations in non-production environments first
• Maintaining appropriate backups and disaster recovery procedures
• Understanding the implications of network changes