List of domain registrars · Integrations
united-domains Reselling
ud-reselling is the reseller platform of united-domains, a German domain registrar in Starnberg near Munich founded in 2000. It serves hosting companies, agencies and domain professionals, and united-domains has been part of United Internet since 2009.
| Extensions sold | Over 1,000 |
|---|---|
| Support | Phone, Email or tickets, Phone Monday to Friday 9:00 to 17:00 |
| Lemon Domains | Connects by API, so your AI can read and manage these domains |
| Website | ud-reselling.com |
united-domains Reselling MCP
Lemon Domains is the unofficial united-domains Reselling MCP server. Connect your united-domains Reselling account by API once, and Claude, ChatGPT, Cursor or any MCP client can answer questions about your united-domains Reselling domains next to the domains you hold at every other registrar. Connections start read only, so your AI changes only what you allow.
- “Which of my united-domains Reselling domains expire in the next 60 days?”
- “Is auto-renew on for every domain at united-domains Reselling?”
- “Did the nameservers change on any of my united-domains Reselling domains this week?”
Connect united-domains Reselling · How the domain MCP server works · Track united-domains Reselling renewals
Lemon Domains is independent and not affiliated with united-domains Reselling.
united-domains Reselling API
| Status | Integrated |
|---|---|
| API login | How to get a united-domains Reselling API login |
| Documentation | ud-reselling.com |
| Eligibility | API access comes with a united-domains Reselling account. |
| Notes | Reseller arm of united-domains. |
About united-domains Reselling
| Headquarters | Starnberg, Germany |
|---|---|
| Ownership | Part of United Internet |
| Type | Wholesale registrar for resellers |
| ICANN accreditation | Not ICANN-accredited |
| Site languages | German, English |
united-domains Reselling history
| 2000 | united-domains is founded in Starnberg. |
|---|---|
| 2004 | Lycos Europe takes over united-domains. |
| 2009 | United Internet buys united-domains. |
| 2011 | Opens a US subsidiary in Cambridge, Massachusetts. |
Services
| Service | Check it on lemon.domains |
|---|---|
| Domain registration | Run a domain report |
| DNS hosting | Look up DNS records |
| Reseller program |
united-domains Reselling support
| Channels | Phone, Email or tickets |
|---|---|
| Hours | Phone Monday to Friday 9:00 to 17:00 |
| Contact | Contact united-domains Reselling |
Domain extensions united-domains Reselling sells
united-domains Reselling says it sells over 1,000. Confirmed on its site: .de.
united-domains Reselling in Lemon Domains
Connect united-domains Reselling with its API login and every united-domains Reselling domain joins your other registrars in one list, syncs once a day, and is there for your AI through MCP, the API and the CLI.
- How it connects
- Daily sync by API login
- Get an API login
- united-domains Reselling API settings
- Lemon Domains IP addresses
- 2.31.94.66
- API reference
- united-domains Reselling API docs
What you can do with united-domains Reselling domains
In Lemon Domains
- Bring in your domains · Synced daily by API
- See expiry, auto-renew and lock status
On united-domains Reselling's site
- Edit DNS records
- Change nameservers
- Turn the transfer lock on or off
- Turn auto-renew on or off
- Renew a domain
- Buy a new domain
- Get a transfer code
Connect united-domains Reselling to Lemon Domains
Three steps: create a read-only API login at united-domains Reselling, add it to Lemon Domains, and your domains sync once a day from then on. Connect as many united-domains Reselling accounts as you have.
Create a read-only API login at united-domains Reselling
united-domains Reselling has one login per account and no read-only variant. Lemon Domains only ever sends QueryDomainList with it.
API access comes with a united-domains Reselling account.
- 1Use the login (user ID) and password of your united-domains Reselling account.
- 2If you limit the key to certain IP addresses, allow the Lemon Domains IP address shown on the connect page.
- 3Enter both in Lemon Domains.
Add it to Lemon Domains
- 1Sign in to Lemon Domains (it's free), open Connections and choose united-domains Reselling.
- 2Give the connection a friendly name, like “united-domains Reselling personal” or “united-domains Reselling clients”. Connect each united-domains Reselling account separately.
- 3Paste your login and password.
- 4Click Test connection. Lemon Domains checks the API login and shows how many domains it can see, without saving anything.
- 5Tick the checkbox to confirm you understand the risks, pick the project new domains go into, and click Connect and import. Your domains appear straight away and sync once a day after that.
What Lemon Domains reads
- Domain names (including internationalised names)
- Status, such as active, expired or pending transfer
- Expiry and registration dates
- Whether auto-renew is on
- Nameservers
- Transfer lock
Lemon Domains only ever sends read requests to united-domains Reselling: each integration has a fixed list of read-only calls it may make, so it never renews, transfers or changes a domain. Your API login is encrypted at rest and never shown again.
If something goes wrong
- united-domains Reselling rejects the API login
- Copy it again with no spaces at either end. Check the login is the API user, not a different account.
- The key has an IP restriction
- Lemon Domains connects from 2.31.94.66. Add it to the API login's allowed IPs, or remove the restriction.
- Some domains are missing
- Make sure the API login belongs to the united-domains Reselling account (or sub-account) that holds those domains. Connect each account separately.
Rather not use an API login? Import by paste or CSV
Copy your list from the united-domains Reselling portal, paste it into Lemon Domains, and you're done. Re-import any time to refresh. Paste or CSV import needs no united-domains Reselling credentials at all.
- 1Open your united-domains Reselling account at ud-reselling.com and go to the domain list.
- 2If the list paginates, switch to "show all" or the largest page size so every united-domains Reselling domain is visible.
- 3Copy the visible list, or export to CSV if united-domains Reselling offers it from the account area.
- 4In Lemon Domains, click Import, paste the list or upload the CSV, and map the columns. Lemon Domains previews everything before it commits.
- 5Give the registrar account a friendly label (for example "united-domains Reselling personal" or "united-domains Reselling client work") so sub-accounts stay distinct.
Other registrars in Germany
| Integrated | |
| Integrated | |
| Integrated | |
| Blocked | |
| Blocked | |
| Blocked |
Sources: the ICANN list of accredited registrars and the IANA registrar ID registry (refreshed 2026-10-24), and united-domains Reselling's own site and documentation (reviewed October 2026). This page is also available as Markdown and JSON. Something out of date? Tell us.
Frequently asked questions
Does Lemon Domains support united-domains Reselling domains?
Yes. Connect your united-domains Reselling account with its API login and Lemon Domains syncs your domains automatically once a day. API access comes with a united-domains Reselling account. You can also import by pasting your domain list from the united-domains Reselling dashboard or uploading a CSV export. Multiple united-domains Reselling accounts are supported with friendly labels so sub-accounts stay distinct in the unified portfolio.
How do I get a united-domains Reselling API login?
Use the login (user ID) and password of your united-domains Reselling account. If you limit the key to certain IP addresses, allow the Lemon Domains IP address shown on the connect page. Enter both in Lemon Domains. united-domains Reselling has one login per account and no read-only variant. Lemon Domains only ever sends QueryDomainList with it.
Do I need to share my united-domains Reselling password?
Only if you connect by API. united-domains Reselling's API signs in with a username and password rather than an API key. united-domains Reselling has one login per account and no read-only variant. Lemon Domains only ever sends QueryDomainList with it. Credentials are encrypted at rest. Lemon Domains only ever sends read requests. If you would rather not, paste or CSV import needs no credentials at all.
Can I track multiple united-domains Reselling accounts?
Yes. Add one connection per united-domains Reselling account, each with its own friendly name. Personal and business logins, sub-accounts, and client accounts all sit side by side in one dashboard.
Does Lemon Domains renew my united-domains Reselling domains?
No. Renewal still happens at united-domains Reselling. Lemon Domains tracks expiry dates and auto-renew status so you know exactly when to act, but the renewal button stays at united-domains Reselling.
Can AI assistants query my united-domains Reselling domains?
Yes. The Lemon Domains MCP server lets ChatGPT, Claude, Cursor and any MCP client query your full portfolio, including united-domains Reselling domains, in plain English. Choose read-only or read-and-write access for each token.
Is united-domains Reselling ICANN-accredited?
united-domains Reselling is not on the ICANN list of accredited registrars. It registers .de domains through the country-code registry.
Is there an MCP server for united-domains Reselling domains?
Yes. Lemon Domains connects to united-domains Reselling by API and serves your united-domains Reselling domains through its remote MCP server, so Claude, ChatGPT, Cursor and any MCP client can answer questions about them. It is independent of united-domains Reselling and not affiliated with it, so the same connection also covers your domains at every other registrar.
Does united-domains Reselling have an API?
Yes. Lemon Domains connects to united-domains Reselling by API and syncs your domain list every day, with expiry dates and renewal settings. Your AI assistant can then answer questions about those domains through the Lemon Domains MCP server.
What domain extensions does united-domains Reselling sell?
united-domains Reselling says it sells over 1,000 extensions. Its price list includes .de.
How do I contact united-domains Reselling support?
united-domains Reselling offers support by phone and email or tickets (Phone Monday to Friday 9:00 to 17:00). united-domains Reselling offers phone support. Its contact page is https://www.ud-reselling.com/en/contact/.
What does united-domains Reselling offer besides domain names?
DNS hosting and Reseller program.