Terms of Service

Last updated: 8 November 2026

These terms govern your use of this website, the gpucheck result and verification service at gpucheck-api.fly.dev, and the purchase of gpucheck certificates (together, the "Service").

1. Who provides the Service

The Service is operated by Narek Keshishyan ("we", "us"). Contact: support@gpucheck.dev.

2. The free tool

The gpucheck command-line tool is open-source software licensed under the Apache License 2.0. Its license, not these terms, governs your use of the software itself. The tool runs a sustained load on your GPU; you run it at your own risk and are responsible for ensuring your hardware is adequately cooled and powered. To the extent permitted by law, we accept no liability for hardware damage, data loss, or downtime arising from running the tool. Uploading results to our service is optional.

3. Result pages and grades

When you upload a result, we host a public result page showing the telemetry, findings, and a letter grade comparing the card's sustained throughput against a reference set of healthy cards of the same model. Grades are statistical comparisons, not guarantees of hardware condition. You receive a delete token with each upload and can remove your result at any time.

4. Certificates — what you are buying

A gpucheck certificate ($29) is a cryptographically signed record of a single graded run made with gpucheck --certify. The run is bound to a fresh one-time challenge issued by our server, and the graded result is signed with an Ed25519 key so that anyone can verify it has not been altered.

A certificate raises the cost of lying about a GPU. It is not proof. Specifically, a certificate does not:

• prove that the telemetry was genuine — a person with full control of the tested machine can fabricate what the tool reads;
• prove that the certified run was the first or only attempt — a seller can re-run the test until they obtain a result they like;
• guarantee the current or future condition of the GPU, or its fitness for any purpose;
• remain reliably verifiable offline — revocation status is checked online only.

By purchasing or relying on a certificate you acknowledge these limitations. A certificate is not a warranty, an inspection report, an insurance product, or an endorsement of any seller or listing.

5. Payments

Certificate purchases are processed by Paddle.com, acting as merchant of record. For each purchase, Paddle is the seller of record and your contractual counterparty for the payment. Your checkout is governed by Paddle's buyer terms, and Paddle handles payment collection, applicable VAT or sales tax, invoicing, and refunds. We do not receive or store your payment card details.

6. Acceptable use

You agree not to:

• misrepresent what a certificate proves when presenting it to others;
• attempt to forge, alter, or replay results or certificates;
• probe, disrupt, or overload the Service, or access it other than through the published tool and pages;
• upload results for hardware you do not own or lack permission to test.

We may refuse service, remove results, or revoke certificates obtained or used in breach of these terms. Where a certificate is revoked for fraud or abuse, no refund is due.

7. Availability

The Service is provided "as is" and "as available". We aim to keep result pages and certificate verification online, but we do not guarantee uninterrupted availability and may modify or discontinue the Service. If we permanently discontinue certificate verification, we will make reasonable efforts to give notice on this website.

8. Disclaimer and liability

To the maximum extent permitted by law, we disclaim all warranties, express or implied, including merchantability and fitness for a particular purpose. We are not liable for decisions made in reliance on a grade or certificate, for hardware damage arising from running load tests, or for any indirect or consequential loss. Our total liability arising from the Service is limited to the amount you paid us in the twelve months before the claim. Nothing in these terms limits liability that cannot lawfully be limited, or the statutory rights of consumers in their country of residence.

9. Indemnity

If you use the Service in breach of these terms — in particular by misrepresenting what a certificate proves, forging or altering results, or testing hardware you had no right to test — you agree to indemnify us against claims, losses, and reasonable costs arising from that breach. This clause does not apply to the extent consumer law in your country of residence does not allow it.

10. Changes

We may update these terms; the "last updated" date above will change when we do. Material changes will be noted on this website. Continued use of the Service after a change means you accept the updated terms.

11. Governing law

These terms are governed by the laws of the Republic of Armenia, without affecting any mandatory consumer protections of your country of residence. Disputes that cannot be resolved informally shall be brought before the competent courts of Armenia, unless mandatory law gives you the right to sue elsewhere.

12. General

If any part of these terms is found unenforceable, the rest remains in effect. A failure to enforce a term is not a waiver of it. These terms are the entire agreement between us about the Service and are personal to you; we may assign them as part of a sale or reorganization of the Service. gpucheck is an independent project: NVIDIA is a trademark of NVIDIA Corporation, and gpucheck is not affiliated with, sponsored by, or endorsed by NVIDIA, Paddle, or any marketplace on which certificates are presented.

Questions? Email support@gpucheck.dev.