Efficient domain management
that saves you time, money and nerves
At ResellerInterface we specialized in automating domain processes for you through innovative automation solutions. for you optimize them for you.
Our powerful tools simplify complex domain management processes, reduce manual effort and help you to sustainably increase your efficiency and profitability.
An extract from our
satisfied customers





What is ResellerInterface?
The solution for your domain management!
With our user-friendly platform, you can easily register, manage and even offer domains under your own branding – without the hassle of accrediting them yourself with registries.
We offer you a reliable, secure and customized solution that is precisely tailored to your needs. With us, you have a partner who knows what’s important: efficiency, the highest security standards and full control over your domain management.
Fail-safe and simple domain transfers
Do you want to move domains quickly and smoothly? With ResellerInterface you can do it easily! Our system guides you step by step through the entire process so that even complex domain transfers run smoothly and without errors.
Security and data protection first and foremost
Data protection and security are our top priorities. With state-of-the-art encryption technologies and strict security measures, we ensure that your data and that of your customers is always optimally protected.
Advanced API for maximum flexibility
Our API gives you full control over your domain management. Whether you want to register, update or delete domains – with our API, you can control everything fully automatically according to your individual processes.
Customer management made easy
With ResellerInterface, you can keep track of your customers and their domains at all times. Our user-friendly dashboard allows you to manage all customer data centrally, create invoices and assign domains easily.
Scalable and reliable
Whether you are just starting your reseller business or already manage a large domain portfolio – with ResellerInterface you are ideally positioned. Our platform is designed to grow with you without compromising on performance.

Who needs
ResellerInterface?
Whether you are a domainer, agency, individual or company – with ResellerInterface you have the tools you need to register, manage and sell domains effectively.
Our platform offers you a centralized solution for your domain management that guarantees maximum flexibility and efficiency. Save time, reduce effort and concentrate on your core business.
Our customers speak for us
The satisfaction of our customers speaks volumes! Our service is regularly praised on hosttest.de for its reliability, user-friendliness and fair price-performance ratio. Convince yourself of our advantages and discover why ResellerInterface is the ideal choice for your domain management!
(Original: German translation)
"Top domain provider Resellerinterface (Greenmark IT GmbH) has been the competent partner and administrator of our domains for over 10 years."
"Very good price-performance ratio The simple and intuitive operation of the reseller interface and the very good support that comes with it makes being a customer fun and enjoyable."
"Good interface, good prices, good service! We have been with ResellerInterface for a long time. Our domains run like clockwork and there are hardly any questions about the ResellerInterface. If a question arises, it is answered quickly and effectively by the support team."
"Good performance, good price I have been using Resellerinterface for several years now and am very satisfied with the price/performance ratio. I manage more than 40 domains in my account with Resellerinterface and the handling for configuration is pleasantly simple and clear, with a wide range of functions. Short response times and individual answers to any support questions."
"Excellent front end app, TOP support! We have been a customer of Greenmark IT GmbH for 7 years now. As a domain investor, broker and expert for sales-supporting domain and OM strategies, we manage a dynamic portfolio of several hundred domains. The ResellerInterface was made available to us this year and we are delighted with it. It offers us all the possibilities of convenient DNS management - simple and very fast or detailed and configurable down to the individual reseller GUI - everything we need and more is mapped in it and can be used intuitively. The support is always friendly and focused on my needs first. Prices and performance are also excellent in relation - the best choice for us - a very good recommendation!"
Your advantages at a glance
With ResellerInterface, you benefit from more than 15 years of experience and feedback from over 20,000 satisfied customers. Our platform enables you to handle complex processes with ease – and is therefore at the heart of successful domain management!
Quickstart
Thanks to the simple operation, you are ready to go straight away.
With an open ear for feedback and ideas, we now inspire over 40,000 satisfied customers. You too can benefit from this success.
Branding
Our interface can be perfectly adapted to your branding - from logos to colors. This allows you to offer your customers a consistent brand experience while strengthening trust and recognition.
Available
Desktop, tablet, mobile - responsively usable on all end devices and incredibly fast. Over 700 domain endings available immediately, further endings can be integrated on request.
Flexible
Professional functions or simple domain management? You decide which products and functions your customers see and which they don't. The system grows with your company and your requirements.
Serious
With the experience gained from managing over 900,000 domains, Greenmark IT GmbH has been an established name in the German domain landscape for over 15 years. Professional workflows and competent advice are guaranteed with us
Marketable
Act as a domain provider under your own brand, while we take care of the technology - whether via our website or API.