Terms of Service

Effective date: 30 June 2026. XSeal is operated by Website Holding.

By using XSeal you agree to these terms. If you are using XSeal on behalf of an organisation, you confirm you have authority to accept these terms for it.

The service

XSeal computes a SHA-256 hash of a file you choose, records a UTC timestamp, and returns a signed certificate (a “seal”). Verification recomputes the hash and checks the signature to report whether a file matches a seal.

What a seal proves — and what it does not

A seal is evidence that a specific file existed in an exact byte-for-byte form at the sealed time. It does not assert authorship, ownership, legality, or the truth of a document’s contents, and it is not a qualified electronic signature under eIDAS.

Acceptable use

• Do not use XSeal to seal unlawful content or to misrepresent what a seal proves.
• Do not attempt to disrupt, reverse-engineer, or overload the service.

Accounts & billing

You are responsible for activity under your account and for keeping your credentials secure. Paid plans are billed by Website Holding as merchant of record on a recurring basis until cancelled; verification remains free.

Availability & liability

XSeal is provided “as is.” We work to keep it available and accurate but do not warrant uninterrupted service. To the extent permitted by law, our liability is limited to the fees you paid in the prior three months.

Intellectual property

The XSeal service, software, branding and documentation remain our property; these terms grant you a limited, non-exclusive right to use the service, not to copy or resell it. The files you seal and the contents of your documents remain entirely yours — we never receive them — and the seal certificate we issue is yours to keep and share.

Termination

You may stop using XSeal and close your account at any time. We may suspend or terminate access that breaches these terms or the law. Seals already created remain verifiable, and the clauses that by their nature should survive (what a seal proves, intellectual property, disclaimers and liability) continue to apply after termination.

Changes to these terms

We may update these terms as the service evolves. When we make material changes we will update the effective date above; continuing to use XSeal after a change means you accept the updated terms.

Governing law

These terms are governed by the laws of the Netherlands, and the courts of the Netherlands have jurisdiction, except where mandatory consumer law gives you the right to bring a claim in your own country of residence.

Contact

Questions about these terms? Use the contact page.