CheckDigitLab is owned and run by Shakeel Lodhi, referred to here as "we", "us" or "our". These Terms & Conditions apply when you visit or use the site. By using it, you agree to the terms. If you do not agree, stop using the site.
1. Scope of Service & Informational Use
CheckDigitLab offers free check digit tools and guides. They cover barcode standards, financial identifiers and codes that help detect data-entry errors.
- Informational & Validation Purposes Only: The calculations, formula explanations, and visual barcode previews provided are for validation, educational, and verification purposes.
- Independent Service: CheckDigitLab is an independent resource and is not officially affiliated with, endorsed by, or operated by GS1, the ISO, the London Stock Exchange, or any financial credit card issuer.
- Official Barcode Licensing: Calculating a valid check digit does not grant commercial rights to sell goods bearing a barcode. Commercial barcodes require officially assigned company prefixes issued by recognized standards organizations such as GS1.
2. Accuracy & Limitation of Liability
While our algorithms adhere rigorously to published specifications (including GS1 General Specifications, ISO/IEC 7812 Luhn, and ISO 7064 Modulo 97), all calculations are provided on an "as-is" and "as-available" basis without warranties of any kind.
Under no circumstances shall CheckDigitLab, its creators, or operators be held liable for direct, indirect, incidental, or consequential damages resulting from errors, packaging print delays, rejected warehouse inventory, or financial transaction failures arising from the use of this service. Users are strongly encouraged to run verification scans on test prints prior to industrial manufacturing runs.
3. Permitted & Prohibited Conduct
You agree to utilize this site solely for lawful purposes. You agree not to:
- Attempt to disrupt, overload, or compromise the operational integrity of the servers or delivery infrastructure.
- Automate excessive scraping that degrades service accessibility for other users.
- Misrepresent results generated by this tool as formal certifications from standards bodies.
4. Intellectual Property
The website's original design, branding, interface code, and educational instructional content are the intellectual property of CheckDigitLab and are protected under copyright and intellectual property laws.
5. Third-Party Links
The site may reference or link to external resources such as standards bodies. We are not responsible for the content, availability or practices of those third-party websites.
6. Changes to the Service and These Terms
We may modify, suspend or discontinue any part of the service at any time, and we may revise these Terms. The "Last updated" date above shows when they last changed; continued use of the site after a change means you accept the revised Terms.
7. Governing Terms
These Terms are governed by the laws applicable in the jurisdiction where the operator of CheckDigitLab is established, without regard to conflict-of-law principles. If any provision is found unenforceable, the remaining provisions stay in full effect. Nothing in these Terms limits rights you have under mandatory consumer protection law.
8. Inquiries & Feedback
If you have any questions or concerns regarding these Terms, please reach out via our contact page.