Effective Date: April 24, 2026 | Last Updated: April 24, 2026
These Terms and Conditions (“Terms”) govern your use of networkcheckr.com (“the Site”), operated by NetworkCheckr (“we,” “us,” or “our”). By accessing or using this website, you agree to be bound by these Terms. If you do not agree, please do not use the Site.
Use of the Website
NetworkCheckr provides free browser-based networking tools and educational guides. You may use the Site for lawful purposes only. By using the Site, you agree to:
- Use our tools and content for personal, educational, or professional purposes only.
- Not use the Site or its tools to conduct unauthorized network scanning, penetration testing, or any activity that targets systems you do not own or have explicit permission to test.
- Not attempt to overload, disrupt, or interfere with the Site’s infrastructure, including making excessive automated requests to our pages or to the third-party APIs our tools rely on.
- Not scrape, reproduce, or redistribute substantial portions of our content without prior written permission.
- Not use the Site to distribute malware, phishing attempts, or any other harmful material.
We reserve the right to restrict or terminate access for any user who violates these Terms.
Intellectual Property
All content on NetworkCheckr — including text, graphics, logos, tool interfaces, code, and the selection and arrangement of content — is the property of NetworkCheckr or its content creators and is protected by United States and international copyright, trademark, and other intellectual property laws.
What You May Do
- View, use, and bookmark any page on the Site for personal or professional reference.
- Share links to our pages on social media, in emails, or on other websites.
- Quote brief excerpts of our guides with proper attribution and a link back to the original page.
What You May Not Do
- Reproduce, republish, or redistribute entire articles, guides, or tool pages without prior written permission.
- Claim authorship of content created by NetworkCheckr.
- Remove or alter any copyright notices, trademarks, or attributions.
- Use our content to train machine learning models or for any automated content generation purpose without explicit written consent.
Tools and Information Disclaimer
The networking tools available on NetworkCheckr are provided for informational and educational purposes only. While we strive for accuracy, the tools and information on this Site come with the following important caveats:
No Guarantee of Accuracy
Our tools rely on client-side processing and third-party APIs (such as ipinfo.io for IP geolocation and Google Public DNS for DNS lookups). Results may vary based on network conditions, DNS propagation, caching, or limitations of the underlying data sources. We do not guarantee that tool results are complete, current, or error-free.
Not Professional Advice
The educational content and tool results on this Site do not constitute professional networking, security, or IT consulting advice. Always verify critical information independently and consult qualified professionals for production network decisions, security assessments, or compliance requirements.
Use at Your Own Risk
You use our tools and act on our content at your own risk. NetworkCheckr is not responsible for any decisions you make or actions you take based on information obtained from this Site. For example, if you use our Subnet Calculator to plan a network and the result does not fit your specific scenario, the responsibility lies with you to verify the output before implementing it.
Third-Party Links and Services
NetworkCheckr contains links to third-party websites, products, and services. These include:
- Affiliate links — links to products and services for which we may earn a commission if you make a purchase. See our Affiliate Disclosure for details.
- External references — links to RFCs, documentation, and authoritative sources cited in our guides.
- Advertisements — third-party ads served through Google AdSense.
We do not control and are not responsible for the content, privacy practices, or availability of third-party websites. The inclusion of a link does not imply endorsement. We encourage you to review the terms and privacy policies of any third-party site you visit through our links.
User-Submitted Content
If you submit content to us through the contact form, email, or any other channel (such as feedback, corrections, or tool suggestions), you grant NetworkCheckr a non-exclusive, royalty-free, perpetual license to use, modify, and incorporate that content for the purpose of improving our site. We will not publicly attribute user-submitted content without your permission.
You represent that any content you submit is your own original work and does not infringe on the rights of any third party.
Limitation of Liability
To the fullest extent permitted by applicable law, NetworkCheckr and its owner, operators, contributors, and affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from or related to:
- Your use of or inability to use the Site, its tools, or its content.
- Any errors, inaccuracies, or omissions in tool results or educational content.
- Unauthorized access to or alteration of your data transmissions.
- Any third-party content, products, or services accessed through links on this Site.
- Any interruption or cessation of service.
This limitation applies regardless of whether the damages are based on warranty, contract, tort, negligence, strict liability, or any other legal theory, even if we have been advised of the possibility of such damages.
THE SITE AND ALL TOOLS, CONTENT, AND SERVICES ARE PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
Indemnification
You agree to indemnify, defend, and hold harmless NetworkCheckr and its owner, operators, and contributors from and against any claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of or in any way connected with your use of the Site, your violation of these Terms, or your violation of any rights of a third party.
Governing Law and Jurisdiction
These Terms are governed by and construed in accordance with the laws of the United States and the State in which NetworkCheckr operates, without regard to conflict of law principles. Any dispute arising under these Terms shall be resolved exclusively in the courts of that jurisdiction.
Termination
We reserve the right to suspend or terminate your access to the Site at any time, without notice, for conduct that we believe violates these Terms or is harmful to the Site, other users, or third parties. Upon termination, the provisions of these Terms that by their nature should survive (including Intellectual Property, Limitation of Liability, Indemnification, and Governing Law) will remain in effect.
Changes to These Terms
We may revise these Terms at any time by updating this page. The “Last Updated” date at the top of the page will reflect the most recent revision. Your continued use of the Site after any changes constitutes acceptance of the revised Terms. We encourage you to review this page periodically.
Related Policies
These Terms should be read alongside our other policies, which together govern your use of NetworkCheckr:
- Privacy Policy — how we collect, use, and protect your data.
- Cookie Policy — what cookies we use and how to manage them.
- Affiliate Disclosure — how affiliate relationships work on this site.
Contact Us
If you have questions about these Terms, please reach out: