General Terms & Conditions

1. Scope

These General Terms and Conditions (GTC) apply to the business relationship of Xelon AG (hereinafter referred to as Xelon) with customers, in particular for services, for orders related to the products, information and advice.


Unless otherwise agreed, the GTC in the version valid at the time of the customer's order, alternatively in any case in the version last notified to the customer in text form, shall apply as a framework agreement also for similar future contracts without Xelon having to refer to them again in each individual case.


These GTC shall apply in place of any general terms and conditions of the customer - such as terms and conditions of purchase - even if, according to these, the acceptance of the order is intended as unconditional acceptance of the general terms and conditions. By placing an order, the customer expressly acknowledges that they waive their legal objection derived from their own general terms and conditions.


In addition to these GTC, Service Level Agreements (SLA) for individual products or individual product parts shall only apply if they are agreed separately. Individual agreements made with the customer in individual cases (including other ancillary agreements, supplements and amendments), in particular terms and conditions stated when the order is placed, must form part of the offer and shall in any case take precedence over these GTC. Subject to proof to the contrary, an agreement in writing or by e-mail (correspondence) or our express confirmation (in writing or by e-mail) shall be authoritative for the content of such agreements. Any changes after the conclusion of the contract require a written agreement between the parties, e-mail is not sufficient.


Legally relevant declarations and notifications to be made by the customer to Xelon after conclusion of the contract (e.g. setting of deadlines, notifications of defects, declaration of withdrawal or reduction) require text form to be effective.


References to the applicability of statutory provisions shall only have clarifying significance. Even without such clarification, the statutory provisions shall therefore apply unless they are directly amended or expressly excluded in these GTC.

2. Information, properties, performance determination

Information and advice as well as other services by Xelon are provided exclusively on the basis of previous experience. The values stated here are to be regarded as average values. All information about products and services, in particular the illustrations, content and performance information and other information available in offers and on the website of Xelon are to be regarded as approximate average values.


A reference to standards, similar technical regulations as well as technical information, descriptions and illustrations in offers, on the website in advertisements of Xelon only constitute a property statement if the quality has been expressly declared as a property; otherwise they are non-binding general descriptions of performance.


A guarantee shall only be deemed to have been assumed by Xelon if Xelon has designated a property or performance as "guaranteed" in writing.


All services and products of Xelon are constantly updated and adapted to a progressing state of the art. Xelon therefore reserves the right, at its reasonable discretion, to make changes to the services and products even after the order has been placed or the contract has been concluded.


Xelon does not assume any liability for the usability of the services and products of Xelon for the purpose envisaged by the customer outside of the legally mandatory liability, unless otherwise agreed with the customer in writing.


Xelon reserves the property rights and copyrights to illustrations, performance and other property descriptions as well as other documents on products and services of Xelon. The customer undertakes not to make the information and documents referred to in the preceding sentence available to third parties unless Xelon gives its prior express written consent.

3. Conclusion of contract, start of contract, scope of services

Xelon's offers are subject to change and non-binding.


The order placed by the customer shall be deemed to be a binding offer of contract. Unless otherwise stated in the order, Xelon is entitled to accept this contract offer within 7 days after receipt by Xelon.

Acceptance by Xelon can be declared either in writing or by e-mail by order confirmation or implied by providing the service or product to the customer.

If a test account (so-called "trial account") is set up for customers, this can be converted into a full account by entering a valid means of payment that can be selected in our online customer area. The customer assures Xelon of the availability of the required charges on the specified means of payment at the time of the contract offer. Only with a full access the customer is entitled to order payable services and products from Xelon.


The customer configures his individual services via the website provided by us or alternatively via the programming interface provided (so-called API). In certain cases, services are provided in accordance with a prior offer (in writing or by e-mail). When configuring the individual IaaS solution, the client submits an offer for the contractual service desired by him in the sense of section 3.2. Unless otherwise agreed, the performance data, terms and conditions and prices applicable at the time of conclusion of the contract, which are indicated in the corresponding portal of Xelon, shall apply. Further details can optionally be regulated in an SLA.


The specific data and prices for the scope of services requested by the customer are stored at Xelon. The service data can be called up at any time in the online customer area and adjusted by the customer. Furthermore, the customer can contact Xelon's customer service via a contact form or by e-mail to


Unless otherwise agreed, Xelon shall provide the contractual services for the period specified by the customer (on demand).

4. Duties and obligations of the client

The customer assures that the data provided by them are correct and complete. They undertake to reconfirm the correctness and completeness of the data to Xelon upon Xelon's request within 10 days of receipt (in writing or by e-mail).


The customer shall provide Xelon with reasonable support in the performance of the service.


The customer shall retrieve the incoming messages from Xelon to its e-mail boxes, which it has deposited with us as a communication address, at regular intervals of no more than three working days.


The customer undertakes measures to keep passwords received from Xelon for the purpose of accessing its services strictly secret, to inform Xelon immediately (by e-mail) as soon as they become aware that the password is known to unauthorised third parties and to change it immediately or have it changed by Xelon if they have reason to suspect that unauthorised third parties have become aware of it. If, due to the fault of the customer, third parties use Xelon's services by misusing the passwords, the customer is liable to Xelon for, among other things, the fees to be paid for the account as well as claims for damages arising therefrom.


The customer vouches for Xelon by way of an independent guarantee that the measures initiated by the customer in connection with the provision of services by Xelon, in particular with regard to the use and content of the infrastructure, do not violate legal prohibitions, morality and the rights of third parties (e.g. trademark, name, copyright, data protection rights).


If claims are asserted against Xelon by third parties due to any infringements of rights they may claim on account of the customer, in particular due to the customer's infrastructure use and content, the customer shall immediately indemnify Xelon, provide Xelon with the necessary support in its legal defence and indemnify Xelon against the costs of the legal defence. The prerequisite for this is that Xelon informs the customer immediately about asserted claims, does not make any concessions or acknowledgements or declarations equivalent to these and enables the customer to conduct all judicial and extrajudicial negotiations about the claims at its own expense.
If a claim is made against Xelon by a third party on account of the customer, in particular on account of the customer's infrastructure use and content, for injunctive relief and/or damages on account of a violation of legal provisions, the customer shall immediately and unconditionally indemnify Xelon against damages (regulatory remedies, contractual penalties, costs of an out-of-court dispute resolution, etc.) on account of a violation of legal provisions, unless the customer proves that the violation is not based on its own conduct or conduct attributable to it.

5. Prices and payment

The fee owed by the customer is determined according to Xelon's price quotations valid at the time of the conclusion of the contract. The price quotations can be viewed in the respective portal of Xelon. In principle, usage-dependent prices are charged in the specified unit (e.g. time) plus the statutory value added tax.


Billing and invoicing shall take place monthly in arrears, depending on the billing model, at the earliest on the first day of the month following the billing month, or in advance.


Xelon is entitled to issue a separate invoice also within one month if the current claim exceeds the usual invoice amount.


Xelon issues an electronic invoice on the customer data provided by the customer in the online customer area. The invoices can be accessed via the customer area and will be sent to the invoice email address provided by the customer upon request. Sending the invoice by post requires a supplementary agreement.


The payment of the fees can be made via the means of payment offered at the time (usually Paypal, credit card and bank transfer). The customer authorises Xelon to collect incurred fees via the specified means of payment. They have to reimburse all costs incurred by non-executable payment transactions (so-called chargebacks), unless the customer has observed due diligence or the damage would have occurred even if he had observed such diligence.


All claims are due and payable upon invoicing, unless Xelon specifies a payment period in the invoice. If the customer does not pay within the payment period stated in the invoice, he will be in default without further reminder. If the customer does not comply with a further request for payment, Xelon reserves the right to charge interest on arrears in the amount of 10%.


For products with limited data transfer volume, if the respective limit is exceeded during a calendar month, the customer will be charged for the additional traffic incurred in the following month in accordance with the published price.

6. Contract period, termination

A contractual relationship between the parties shall in principle be deemed to be concluded for an indefinite period.


Unless otherwise defined, the customer may terminate the contractual relationship as a whole or individually ordered contractual components at any time without notice with effect from the next working day.


If no minimum contract period is defined, Xelon can terminate the contractual relationship as a whole or individually ordered contract components by giving 4 weeks' notice to the end of the month.


The right of both parties to terminate without notice for good cause remains unaffected.


An important reason for termination exists for Xelon in particular if the customer is in default with the payment of the fees owed or a not insignificant part thereof (at least 50%) for a further 30 days despite a payment reminder. Furthermore, an important reason exists if an application for the opening of insolvency proceedings has been filed against the customer's assets or if such an application has been rejected due to lack of assets, if enforcements against the customer have remained unsuccessful or if enforcement measures have been taken and have not been withdrawn within one month.

rejected due to lack of assets, if enforcements against the customer have remained unsuccessful or if enforcement measures have been taken and have not been withdrawn within one month.

7. Third party rights

If a third-party asserts claims against the customer due to the infringement of an industrial property right or copyright by the use of the services owed by Xelon in Switzerland and if their use is impaired or prohibited as a result, the following provisions shall apply.


Xelon shall, at its option and expense, either modify or replace the agreed services in such a way that the property right is not infringed, but essentially corresponds to the agreed service in a way that is reasonable for the customer, or indemnify the customer from licence fees vis-à-vis the property right holder or third parties.


Prerequisites for Xelon's liability according to clause 7.2 are that the customer immediately notifies Xelon of the assertion of claims by third parties, does not acknowledge the alleged infringement of property rights and leaves any dispute including any out-of-court settlements to Xelon or only conducts them in agreement with the latter. If the customer discontinues the use for reasons of mitigation of damages or other important reasons, they are obliged to point out to the third party that the discontinuation of use does not imply an acknowledgement of the alleged infringement of property rights.


Insofar as the customer is responsible for the infringement of property rights, the claim of third parties is based on the fact that the service content owed by Xelon was changed without their knowledge, processed in another way and not used with services provided by Xelon, claims against Xelon of the customer are excluded according to this clause 7.


Insofar as applicable, legally binding liability regulations or the regulations in section 8 remain unaffected by this.

8. Liability

Xelon shall not be liable to the customer for damages or reimbursement of expenses, irrespective of the legal grounds.


The above exclusion of liability shall not apply in cases where liability is mandatory by law, such as


for Xelon's own intentional or grossly negligent breaches of duty or intentional or grossly negligent breaches of duty by legal representatives or vicarious agents of Xelon;


for the breach of essential contractual obligations; "Material contractual obligations" are obligations that protect the customer's legal positions material to the contract, which this contract is specifically intended to grant him according to its content and purpose; furthermore, material contractual obligations are contractual obligations whose fulfilment makes the proper performance of this contract possible in the first place and on whose compliance the customer has regularly relied and may rely;


  • in case of injury to life, limb and health, also by legal representatives and vicarious agents of Xelon;

  • in the event of default, insofar as a fixed delivery date was agreed;

  • insofar as Xelon has assumed a guarantee for the quality of the services and products or for the existence of a performance success, or a procurement risk;

  • in the event of liability under the Product Liability Act or other legally binding liability circumstances


In the event that Xelon, its legal representatives or its vicarious agents are only guilty of slight negligence and no case of the aforementioned clause 8.2 exists, Xelon shall only be liable for the contract-typical and foreseeable damage, even in the event of a breach of essential contractual obligations.


Insofar as Xelon is liable pursuant to this clause 8, its liability is limited in amount to a maximum liability sum of CHF 100,000.00 for each individual case of damage. This does not apply if Xelon is guilty of malice, intent or gross negligence, for claims due to injury to life, limb or health, as well as in the case of a claim based on a tortious act or an explicit, additional guarantee or the assumption of a procurement risk by Xelon or in cases of legally compelling, deviating, higher liability sums. Any further liability of Xelon is excluded.


Xelon's liability for indirect damages (in particular in the form of lost profit) is excluded. Clause 8.4 above shall apply accordingly.


For the loss of data or programs, Xelon is liable, irrespective of the cases mentioned in 8.1 to 8.5, only up to the amount of damage that would have occurred even with regular data backups. The aforementioned limitation of liability therefore applies in particular if the damage is based on the fact that the customer has failed to carry out regular data backups himself, which may not be stored in the Xelon data centre itself, and thus to ensure that lost data can be restored with reasonable effort. This does not apply if Xelon has contractually taken over the data backup for the customer.


Xelon uses TLS/SSL encryption for certain security-relevant data transmissions and connections. Despite this, data communication via the Internet cannot be guaranteed to be error-free and/or available at all times according to the current state of the art. Liability for constant and uninterrupted availability is therefore excluded, notwithstanding the cases mentioned in 8.1 to 8.5, unless there is a separate contractual agreement with the customer.


A reversal of the burden of proof is not associated with the above provisions.

9. Information and audit rights

The customer and Xelon mutually undertake measures to treat as confidential for an unlimited period of time all confidential information and trade secrets of the respective other contracting party, which the latter makes accessible to the respective other party on the basis of the contract initiation and fulfilment, and to use them only within the scope of the agreed purpose, as well as to comply with the applicable provisions of data protection and data security. The processing of personal data by Xelon is also governed by the "Data Protection Declaration" of Xelon as well as the data protection agreement concluded between the parties for commissioned data processing. "Agreement on Order Data Processing" including its appendix "TOM - Technical and Organisational Security Measures", which take precedence over the provisions under § 9 in the event of any ambiguities or contradictions.


All personal data provided (such as title, name, address, date of birth, e-mail address, telephone number, fax number, bank details) will be collected, processed or used exclusively in accordance with the applicable data protection conditions.


Insofar as personal data is required for the establishment, content or amendment of the contractual relationship (inventory data), it shall be used exclusively for the processing of the concluded contracts. Any further contractually required use of inventory data for the purposes of advertising or market research requires the express consent of the customer. It is possible to give consent before declaring registration or the use of services. The declaration of consent is voluntary and can be revoked at any time.
Personal data which are necessary to enable the use of the services and to bill for them (traffic/usage data) are used to process the contracts concluded. Such traffic data are in particular the characteristics for identifying the customer as a user, information about the beginning and end as well as the scope of the respective use of services.

10. Limitation, Place of Performance, Miscellaneous

The limitation period for all contractual and legal claims against Xelon is one year.


The shortening of the limitation period pursuant to clause 10.1 shall not apply if a longer limitation period is prescribed by law. In this case, the longer limitation period shall apply.


In accordance with the statutory provisions, claims based on an intentional or grossly negligent act of Xelon, a legal representative or vicarious agent of Xelon as well as claims for damages from injury to life, body or health based on an intentional or negligent breach of duty by Xelon, a legal representative or vicarious agent shall also be time-barred.


Xelon may transfer its rights and/or obligations from the contractual relationship to one or more third parties (e.g. assumption of contract and/or debt, assignment). In this case and the simultaneous impairment of its interests, the customer has the right to terminate the contract extraordinarily (in writing or by e-mail).


Any waiver by Xelon (such as, for example, for the enforcement of contractual penalties) must be expressly declared in writing or by e-mail. Xelon's failure to insist on full and/or partial compliance with any of the terms or provisions of these T&Cs and the Supplementary Rules shall not be construed as an acknowledgement of the breach or a waiver of any future application of the relevant term, provision, option, right or remedy.
The customer may only offset claims for remuneration of Xelon against claims that have been legally established or recognised by Xelon.

11. Reservations of right of modification

We are entitled to amend these GTC and the other contractual conditions with a notice period of 6 weeks in advance. We will notify the customer of the respective amendment by e-mail or in other text form. At the same time, the customer is expressly informed that the respective amendment will become the subject matter of the contract existing between the contracting parties if the customer does not object to this amendment in text form within a period of 4 weeks from the notification of the amendment. If the customer objects, each party shall have the right to terminate the contract with the notice period applicable to ordinary termination.


Insofar as the amendment pursuant to clause 11.1 above relates to the promised services of the contractual relationship, an amendment of the GTC is permissible if the agreement of the amendment, taking into account the interests of Xelon for the customer is reasonable. The same applies if Xelon reserves the right to unilaterally change a service at any time in these GTC.


By continuing to use a service or product after notification and implementation of a change without notice of termination being given by the customer, the customer declares his or her agreement with the contractual terms and conditions and general terms and conditions valid at that time, which are currently available at


In other words: We may change these terms and conditions. We will communicate these changes to you in good time so that you can inform yourself about the changed contents. If you continue to use Xelon after a change to the TOS, you automatically accept the new TOS.

12. Final provision (severability clause)

 If any provision of this contract is or becomes invalid/void or unenforceable or incomplete in whole or in part, this shall not affect the validity of the remaining provisions of this contract. The parties shall replace the ineffective/void/impracticable provision or gap requiring filling by a valid provision which corresponds in its legal and economic content to the invalid/void/impracticable/gap provision and the overall purpose of the contract.

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Terms of use

The terms of use are mainly intended to protect the operating environment of Xelon so that its service quality is not impaired in the interest of the majority of customers. Customers who pass on their server or account or parts of it to third parties - whether against payment or free of charge - are obliged to inform them accordingly and are liable to Xelon for them.

1. Use of the services

Infringement of rights

All data, content and activities as well as the promotion of or participation in such that violate Swiss law are prohibited. This includes the publication or distribution of data protected by copyright or distribution law.


The publication or distribution of racist content or backgrounds is not permitted. Xelon has the right to decide on the definition of racist content or backgrounds in ambiguous cases.

Misuse and abuse

Activities as well as the promotion of or participation in such, which are considered unwelcome according to generally known Internet rules of conduct (Netiquette / RFC1855), are not permitted. This includes the (multiple) unsolicited distribution of unwanted messages (spam, UCE etc.) as well as attacks against other systems connected to the Internet (DDoS attack, spoofing etc.). Xelon is entitled to the definition of netiquette and its components. Furthermore, the customer shall refrain from excessive bandwidth consumption, i.e. if the available network resources are impaired to the disadvantage of other customers.

Obligations of the customer

Customer shall be obliged to take suitable precautions to avoid the illegal use of the Services and to immediately inform Xelon of all findings suitable to avoid the misuse of its Services. He shall indemnify Xelon for all claims raised against Xelon in connection with the use of its services by Customer and the persons supervised by Customer. The customer renounces the excessive use of system resources which has a negative effect on other customers.

2. Electronic mail


Customer is responsible for the content of the messages he/she sends using a service of Xelon. Customer shall indemnify and hold Xelon harmless in case third parties assert claims against Xelon in connection with the transmission of messages by Customer.

Sending of unsolicited communications

The sending of annoying e-mails, in particular the sending of identical unsolicited messages to a large number of addressees, is prohibited (spamming). The falsification of header information in Usenet messages (spoofing) and the publication of the same or similar messages in several electronic discussion forums (news groups) such as "Usenet Spamming", "Excessive Multi-Posting" and "Excessive Cross-Posting" are prohibited. The use of a third-party mail server as a distribution station (relay) for the distribution of electronic messages is prohibited without the prior written consent of the owner of the mail server.

3. Security guidelines

System security breach

Violations of system and network security constitute breaches of contract for which the customer is liable under civil law. If the necessary prerequisites are met, the customer is also liable under criminal law. In these cases, Xelon reserves the right to file criminal charges with the competent prosecution authorities. In particular, the following actions constitute breaches of contract by Customer, which may also lead to criminal prosecution:

Unauthorised access to or use of data, systems and network elements, the examination of the vulnerability of system or network competence without prior consultation (scanning) or the attempt to break security and automation measures without prior written permission from the competent authorities or the network owner (sniffing). Interference with the systems of Xelon and your customers, especially by means of mail bombs, mass mailings and other attempts to overload the system (flooding).
Manipulation of control information in TCP/IP packets (packet headers), e.g. the TCP/IP addresses or an information in the control part (e.g. address of recipient/sender), in an electronic message or in a newsgroup entry.

Use of access data

The passwords or other identification parameters provided to the customer are intended for personal use by the recipient and must be treated confidentially. Xelon may rely on the fact that the person using an identification parameter is authorized to do so.

4. Prosecution of violations

Settings of services

Xelon may suspend the provision of services and access to the network if any act or omission by Customer endangers or appears to endanger the normal functioning or security of the network through which Xelon provides the services, or if Customer violates the contract (including these Guidelines) with Xelon. Customer shall be charged for the effort involved in clarifying such violations. Customer acknowledges that Xelon may have to disclose Customer's identity to third parties (e.g. law enforcement agencies) in case of a violation of these guidelines.

5. Notifications and amendments

Customer's duty to notify

Customer shall be obliged to inform Xelon immediately about any defects, malfunctions or interruptions of services, installations or software that have come to his knowledge, including all cases of illegal and/or contractually violating use of the service by third parties (e.g. hackers).


Notifications in connection with the guidelines set out here should be sent to:

Subject to change

Xelon reserves the right to change these guidelines according to the principles set forth in the applicable GTC