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Active24

ACTIVE 24 is a Czech domain and hosting company in Prague, with roots in Globe Internet, started in 1996. It has been a .cz registrar since 2003, sells domains, hosting and email in several European countries, and is in the same group as Loopia and Websupport.

Connect Active24 to Lemon Domains

Extensions sold404 extensions
SupportLive chat, Phone, Phone Monday to Friday 8:00 to 20:00; chat around the clock
Lemon DomainsConnects by API, so your AI can read and manage these domains
Websiteactive24.cz

Active24 MCP

Lemon Domains is the unofficial Active24 MCP server. Connect your Active24 account by API once, and Claude, ChatGPT, Cursor or any MCP client can answer questions about your Active24 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 Active24 domains expire in the next 60 days?”
  • “Is auto-renew on for every domain at Active24?”
  • “Did the nameservers change on any of my Active24 domains this week?”

Connect Active24 · How the domain MCP server works · Track Active24 renewals

Lemon Domains is independent and not affiliated with Active24.

Active24 API

StatusIntegrated
API keyHow to get a Active24 API key
Documentationrest.active24.cz
NotesShares the Websupport REST platform.

About Active24

HeadquartersPrague, Czech Republic, Czechia
Founded1997
OwnershipPrivate
Part ofteam.blue
TypeWeb host that registers domains
ICANN accreditationNot ICANN-accredited
Site languagesCzech, English

Active24 history

1996Starts as Globe Internet.
2003Becomes a .cz registrar and enters the Slovak market.
2004Is renamed ACTIVE 24 by its owner, ACTIVE 24 ASA.
2016Starts serving customers in Spain, the Netherlands, Germany and the United Kingdom.

Services

ServiceCheck it on lemon.domains
Domain registrationRun a domain report
DNS hostingLook up DNS records
Email hostingCheck email records
Web hostingFind who hosts a site
PricesActive24's price list

Active24 support

ChannelsLive chat, Phone
HoursPhone Monday to Friday 8:00 to 20:00; chat around the clock
LanguagesCzech
ContactContact Active24

Domain extensions Active24 sells

Active24's price list has 404 extensions: 280 generic, 65 country-code and 59 second-level. Read from active24.cz in October 2026. Each one links to its registry, rules and the other registrars that sell it.

Generic 280

Country code 65

Second-level 59

Active24 in Lemon Domains

Connect Active24 with an API key and every Active24 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.

Connect Active24Already signed up? Connect Active24
How it connects
Daily sync by API key
Get an API key
Active24 API settings
Lemon Domains IP addresses
2.31.94.66
API reference
Active24 API docs

What you can do with Active24 domains

In Lemon Domains

  • Bring in your domains · Synced daily by API
  • See expiry, auto-renew and lock status

On Active24'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 Active24 to Lemon Domains

Three steps: create a read-only API key at Active24, add it to Lemon Domains, and your domains sync once a day from then on. Connect as many Active24 accounts as you have.

Step 1

Create a read-only API key at Active24

Give it the least access you can

Active24 API keys cannot be limited to read-only; a Standard key can manage the whole account. Create a key just for Lemon Domains so you can delete it on its own. Lemon Domains only ever reads the service list.

  1. 1Sign in to the Active24 customer administration and open the REST API keys page in your account settings.
  2. 2Generate a new Standard API key (a DynDNS key only updates records) and name it “Lemon Domains”.
  3. 3Copy the identifier and the secret. The secret is only shown once.

Open Active24 API settings

Step 2

Add it to Lemon Domains

  1. 1Sign in to Lemon Domains (it's free), open Connections and choose Active24.
  2. 2Give the connection a friendly name, like “Active24 personal” or “Active24 clients”. Connect each Active24 account separately.
  3. 3Paste your api key (identifier) and secret.
  4. 4Click Test connection. Lemon Domains checks the API key and shows how many domains it can see, without saving anything.
  5. 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.
Step 3

What Lemon Domains reads

Synced once a day
  • Domain names (including internationalised names)
  • Status, such as active, expired or pending transfer
  • Expiry and registration dates
  • Whether auto-renew is on
Read-only by design

Lemon Domains only ever sends read requests to Active24: each integration has a fixed list of read-only calls it may make, so it never renews, transfers or changes a domain. Your API key is encrypted at rest and never shown again.

If something goes wrong

Active24 rejects the API key
Copy it again with no spaces at either end. Some registrars only show the secret once, so create a new key if you didn't save it.
The key has an IP restriction
Lemon Domains connects from 2.31.94.66. Add it to the API key's allowed IPs, or remove the restriction.
Some domains are missing
Make sure the API key belongs to the Active24 account (or sub-account) that holds those domains. Connect each account separately.

Rather not use an API key? Import by paste or CSV

Copy your list from the Active24 portal, paste it into Lemon Domains, and you're done. Re-import any time to refresh. Paste or CSV import needs no Active24 credentials at all.

Open your Active24 administration

  1. 1Open your Active24 account at active24.cz and go to the domain list.
  2. 2If the list paginates, switch to "show all" or the largest page size so every Active24 domain is visible.
  3. 3Copy the visible list, or export to CSV if Active24 offers it from the account area.
  4. 4In Lemon Domains, click Import, paste the list or upload the CSV, and map the columns. Lemon Domains previews everything before it commits.
  5. 5Give the registrar account a friendly label (for example "Active24 personal" or "Active24 client work") so sub-accounts stay distinct.

Related registrars

Combell logo
Combell
Integrated
Register.it logo
Register.it
Blocked
TransIP logo
TransIP
Integrated
Websupport logo
Websupport
Integrated
Amen logo
Amen
Not reviewed
home.pl logo
home.pl
Not reviewed

Sources: the ICANN list of accredited registrars and the IANA registrar ID registry (refreshed 2026-10-24), and Active24'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 Active24 domains?

Yes. Connect your Active24 account with an API key and Lemon Domains syncs your domains automatically once a day. You can also import by pasting your domain list from the Active24 dashboard or uploading a CSV export. Multiple Active24 accounts are supported with friendly labels so sub-accounts stay distinct in the unified portfolio.

How do I get a Active24 API key?

Sign in to the Active24 customer administration and open the REST API keys page in your account settings. Generate a new Standard API key (a DynDNS key only updates records) and name it “Lemon Domains”. Copy the identifier and the secret. The secret is only shown once. Active24 API keys cannot be limited to read-only; a Standard key can manage the whole account. Create a key just for Lemon Domains so you can delete it on its own. Lemon Domains only ever reads the service list.

Do I need to share my Active24 password?

No. Connecting by API uses an API key you create at Active24, not your password. Active24 API keys cannot be limited to read-only; a Standard key can manage the whole account. Create a key just for Lemon Domains so you can delete it on its own. Lemon Domains only ever reads the service list. Keys are encrypted at rest. Lemon Domains only ever sends read requests. Or skip the API and paste your list or upload a CSV.

Can I track multiple Active24 accounts?

Yes. Add one connection per Active24 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 Active24 domains?

No. Renewal still happens at Active24. Lemon Domains tracks expiry dates and auto-renew status so you know exactly when to act, but the renewal button stays at Active24.

Can AI assistants query my Active24 domains?

Yes. The Lemon Domains MCP server lets ChatGPT, Claude, Cursor and any MCP client query your full portfolio, including Active24 domains, in plain English. Choose read-only or read-and-write access for each token.

Is Active24 ICANN-accredited?

Active24 is not on the ICANN list of accredited registrars. It registers .cz, .eu and .sk domains through the country-code registries.

Is there an MCP server for Active24 domains?

Yes. Lemon Domains connects to Active24 by API and serves your Active24 domains through its remote MCP server, so Claude, ChatGPT, Cursor and any MCP client can answer questions about them. It is independent of Active24 and not affiliated with it, so the same connection also covers your domains at every other registrar.

Does Active24 have an API?

Yes. Lemon Domains connects to Active24 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 Active24 sell?

Active24's price list has 404 extensions: 280 generic, 65 country-code and 59 second-level, as of October 2026. They include .com, .net, .org, .io, .ai, .co, .app, .dev, .xyz, .uk, .de and .eu. The full list is on this page.

How do I contact Active24 support?

Active24 offers support by live chat and phone (Phone Monday to Friday 8:00 to 20:00; chat around the clock). Active24 offers phone support. Its contact page is https://www.active24.cz/o-spolecnosti/kontakty.

What does Active24 offer besides domain names?

DNS hosting, Email hosting and Web hosting.