# Key-Systems (CentralNic Reseller)

Source: https://lemon.domains/domain-registrars/key-systems (also as .json)

Key-Systems is a German registrar for resellers and companies, based in St. Ingbert, and the company behind the CentralNic Reseller platform (formerly RRPproxy). Founded by Alexander Siffrin in 1998 and ICANN-accredited since 2000, it has been part of Team Internet Group (formerly CentralNic Group), listed in London, since 2018.

- Website: https://www.key-systems.net
- Legal name: Key-Systems GmbH
- Headquarters: St. Ingbert, Germany
- Founded: 1998
- Founders: Alexander Siffrin
- Ownership: Part of Team Internet Group PLC (LSE: TIG)
- Type: Wholesale registrar for resellers
- Part of: Team Internet
- ICANN accreditation: IANA IDs 228, 269, 1345, 1387, 1444
- Other names: Moniker Online Services LLC; Key-Systems GmbH; 1API GmbH; Unidata S.p.A.
- Country-code extensions: .de
- Site languages: German, English
- API: Integrated. Integrated with Lemon Domains (https://kb.centralnicreseller.com/api/api-command/QueryDomainList)

## Services and extensions (checked October 2026)

- Domain registration, DNS hosting, SSL certificates, Reseller program
- Extensions sold: over 1,100

## Support

- Channels: Help center
- Contact: https://www.rrpproxy.net/Contact/About_The_Company

## Sources

- https://www.key-systems.net/en/business-areas/centralnic-reseller/
- https://www.key-systems.net/en/company/accreditations/
- https://www.rrpproxy.net/API

## Key-Systems (CentralNic Reseller) history

- 1998: Alexander Siffrin founds Key-Systems.
- 2000: Becomes an ICANN-accredited registrar.
- 2010: Moves its headquarters to St. Ingbert.
- 2011: Merges with NameDrive to form KeyDrive.
- 2018: KeyDrive, including Key-Systems, is acquired by CentralNic Group.
- 2022: Renames its reseller platform RRPproxy to CentralNic Reseller.
- 2023: CentralNic Group is renamed Team Internet.

## Payments and programs

- Payment methods: Credit and debit cards, PayPal, Bank transfer, Prepaid account balance
- Reseller program: https://www.key-systems.net/en/business-areas/centralnic-reseller/

## Company sources (checked October 2026)

- https://icannwiki.org/Key-Systems
- https://www.key-systems.net/en/legal/terms-conditions/
- https://www.rrpproxy.net/Contact/Bank_Account

Part of the list of domain registrars at https://lemon.domains/domain-registrars, kept by Lemon Domains, the domain portfolio manager with a domain MCP server.