Terms of use

1. Scope and provider

These terms govern the use of Dex. The provider is Dex (operator and postal address: see the legal notice), email: dexai.support@proton.me. Dex is offered to businesses and consumers. A user's own terms apply only if we expressly agree to them.

2. What Dex does

Dex reads the public pages of your website, finds problems with search and AI visibility, writes draft improvements and checks them before you see them. You decide what gets used. Dex publishes nothing itself and has no access to your content management system.

Dex is at an early stage. Features may change; we tell you about significant changes.

3. Contract and account

The contract is concluded when you create an account. You must be at least 18. Keep your sign-in details secret and tell us if you suspect misuse.

4. Prices

Dex is currently free. We introduce paid plans only with advance notice. You pay nothing until you expressly agree to a paid plan.

5. Your obligations

• Only let Dex check websites you own or are authorised to check.
• Only name publicly reachable websites as competitors.
• Do not use Dex to attack or overload systems or to get around security measures.
• Review every draft before you publish it. You are responsible for content you publish.

6. AI drafts

Drafts are written by an AI model and labelled as AI-generated. They are suggestions and may contain errors. Dex checks them for known risks, but this does not replace your own review, for example for competition, trademark or copyright law.

7. No guaranteed results

Search engines and AI services decide rankings themselves. We do not owe any particular ranking, number of visitors or revenue.

8. Availability

We aim for smooth operation but cannot promise uninterrupted availability. Where possible we announce maintenance in advance.

9. Rights to content

Your content remains yours. You may use drafts Dex creates for you freely. Rights in the Dex software remain with the provider.

10. Liability

We are liable without limitation for intent and gross negligence, for injury to life, body or health, under the German Product Liability Act, and where we have given a guarantee.

For slight negligence we are liable only for breach of essential contractual obligations, meaning obligations whose fulfilment makes using Dex possible in the first place and on which you may rely. In that case liability is limited to foreseeable, typical damage. Otherwise liability for slight negligence is excluded.

While Dex is free, we are liable only for intent and gross negligence, as far as the law permits. Unlimited liability under the first paragraph is unaffected.

11. Term and termination

You can close your account at any time without notice; an email to dexai.support@proton.me is enough. We can terminate free accounts with 30 days' notice. Either side may terminate without notice for good cause, such as misuse.

12. Right of withdrawal for consumers

Right of withdrawal

You have the right to withdraw from this contract within fourteen days without giving any reason. The withdrawal period is fourteen days from the day the contract is concluded.

To exercise your right of withdrawal, you must inform us (Dex (operator and postal address: see the legal notice), email: dexai.support@proton.me) of your decision to withdraw from this contract by a clear statement (for example, an email). You may use the model withdrawal form below, but it is not obligatory. To meet the withdrawal deadline, it is sufficient for you to send your notice before the withdrawal period expires.

Effects of withdrawal

If you withdraw from this contract, we shall reimburse all payments received from you without undue delay and at the latest within fourteen days from the day we are informed of your decision to withdraw. We will use the same means of payment you used for the original transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result. If you requested that the services begin during the withdrawal period, you shall pay us an amount proportionate to what has been provided until you informed us of your withdrawal, compared with the full coverage of the contract.

Model withdrawal form

(Complete and return this form only if you wish to withdraw from the contract.) To Dex (operator and postal address: see the legal notice), email: dexai.support@proton.me: I/We (*) hereby give notice that I/We (*) withdraw from my/our (*) contract for the provision of the following service: use of Dex. Ordered on (*) / received on (*). Name of consumer(s). Address of consumer(s). Signature of consumer(s) (only if this form is notified on paper). Date. (*) Delete as appropriate.

13. Changes to these terms

We may change these terms if Dex or the law changes. We tell you by email at least six weeks in advance. If you do not object before the changes take effect, the new terms apply; we will point this out in the notice. If you object, either side may terminate the contract.

14. Governing law and jurisdiction

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers, this choice of law applies only insofar as it does not deprive them of the protection of mandatory provisions of the country where they habitually reside.

If the user is a merchant, a legal entity under public law or a special fund under public law, the place of jurisdiction is Leipzig, Germany.

If any provision is invalid, the remaining provisions remain valid.