Rental processes 3x faster: Goldenkey relies on digital signatures
Digital signatures for rental contracts greatly accelerate contract close
- Faster and more efficient contract conclusions
- 87% of the contracts signed within 24 hours
- Intuitive eSigning platform


Get to know the customer
Goldenkey is a cloud-based CRM software for estate agents and property managers that was developed in Switzerland. Speed and efficiency in letting and sales as well as intuitive operation are the cornerstones of the software developed in-house by the company, which was founded in 2010.
At a glance
Attractive
Customers love its efficiency and UX
Efficient
Properties rented 3 times faster
Secure
Sign contracts quickly and securely
The challenge:
Goldenkey wanted to integrate a digital signature solution for rental processes that would allow rental agreements, initial rent forms and the digital handover protocol to be signed 100% paperless. They also wanted to speed up sales transactions with digital signatures.
The solution needed to be secure and easy to use. It was important that the solution could be seamlessly integrated into the company’s own software. The good price-performance ratio was also convincing.
Customer requirements at a glance
- Secure and easy-to-use signature solution
- Seamless integration into your own software
- Close dialogue with the team with short response times
"Our customers are completely satisfied and emphasise that they can work faster, more cost-effectively and more securely with digital signatures."
Gilbert Spaini, COO, Goldenkey

The solution
Goldenkey integrated Certifaction’s digital signatures into its own software within just a few weeks. The introduction went very well, and the Certifaction team answered all questions quickly and competently.
From developers, for developers
The simplest API for signing and identifying


The results
Fast rental and sales process
Efficiency enhancement for customers
Maximum data and document security
Seamless integration into your own software
Simple and fast signing from everywhere
Intuitive operation, even for first-time users
The result in figures
Alle Vorteile auf einen Blick
Maximum data and document security
Direct line to the Swiss team
Simple integration via API
Innovative features
Satisfied customers
Mobile-First UX
All Signature Standards (incl. QES)
User-friendly signing
Digitalisation and competitive advantage
Your path to the future
Join leading organizations
Contact us now to find out how we can help your company make your signing, certification and verification processes digital, intuitive and future-proof.
FAQs
Our answers to the most frequently asked questions
Are Certifaction's eSignatures legally valid?
Yes. Our eSignatures are legally valid and support all major global standards (incl. eIDAS, ZertES, UETA, ESIGN).
In addition, you can choose the signature type that suits you best: from the cost-effective simple eSignature to the qualified eSignature (QES).
What is the Zero Document Knowledge technology and what are the advantages?
Unlike most competing providers, Certifaction offers the option of signing documents without ever seeing their content. The documents are processed locally on the customer side and encrypted when using the web app.
In the case of API integration, a local gateway takes over the encryption. In the event of a hack, the file would therefore be encrypted and unreadable. We also ensure that the documents are stored on ISO 27001-certified servers in Switzerland or an EU country.
Is there a white-labeled version of Certifaction?
How much integration work is involved?
The Certifaction WebApp can be used immediately in the browser. The eSignature solution can also be integrated quickly via an API connection. Alternatively, the solution can be used as a white label product with full personalisation. Depending on the requirements, this is ready within a few weeks.
Why should I choose Certification over an on-premises solution?
What makes Certification stand out from the competition?
Certifaction is characterised by its innovative technology and clear focus on partnerships. Our customers value us as a trustworthy European partner that not only offers close cooperation and the highest security standards, but also enables the integration of its own products through white label solutions. This opens up new business opportunities and additional revenue streams for our partners. Our solution offers:
- maximum security through Zero Document Knowledge
- innovative features such as the Digital Twin (making digitally signed documents verifiable even when printed out), bulk signing, Teamspaces (rooms with shared signature processes) and guest signatures without registration
- Signature requests in under a minute and smooth onboarding in just 15 minutes thanks to intuitive operation
- smooth identifications without app download within a very short time
- a recommendation score (NPS) of +90
Do you have any further questions?