21stoleti.cz

Czech popular-science magazine website publishing articles on history, science, nature, medicine and technology

Praha, CzechiaFounded 200021stoleti.czWebsite technologies

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About 21stoleti.cz

21stoleti.cz publishes Czech-language popular-science articles, quizzes and interviews covering architecture, history, medicine, nature, technology and space. The site also offers an online archive and a subscription option, and it is connected to the printed magazine 21. STOLETÍ EXTRA.

The publisher is RF HOBBY s.r.o., a Czech limited liability company. Readers are the audience for the magazine and its website; the site presents articles and offers subscriptions.

The company is headquartered in Prague and was founded in 2000.

Product: Online popular-science magazine with articles, quizzes, interviews, online archive and subscriptions

Public contracts

Contracts 21stoleti.cz signed since 1 Nov 2024, from the Slovak and Czech public contract registers. Values as published; amendments are not counted.

Customers

40 contracts with 12 buyers · 4.1M CZK

ContractsValue
Dopravní podnik hl. m. Prahy, akciová společnost2500k CZK
ŽIVÝ KRAJ - DESTINAČNÍ AGENTURA PRO KARLOVARSKÝ KRAJ, Z.S.2150k CZK
Základní škola a mateřská škola WOLFRAM v Praze 12, příspěvková organizace2140k CZK
Ústecký kraj1100k CZK
Turistické informační centrum Pardubice, příspěvková organizace175k CZK
Hvězdárna a planetárium Brno, příspěvková organizace174k CZK
Masarykova univerzita174k CZK
Centrála cestovního ruchu - Jižní Morava, z.s.p.o.170k CZK

Open public tenders for 21stoleti.cz →

Latest contracts

  • 1 Sep 2026 for Základní škola a mateřská škola WOLFRAM v Praze 12, příspěvková organizace · Pronájem tělocvičny · 72k CZK register
  • 1 Apr 2026 for Ústecký kraj · Smlouva o dílo Prezentace Ústeckého kraje v magazínu Epocha v roce 2026 · 100k CZK register
  • 18 Mar 2026 for Dopravní podnik hl. m. Prahy, akciová společnost · Inzerce · 250k CZK register
  • 30 Jan 2026 for Statutární město Pardubice · Objednávka - speciální nabídka inzerce v titulech RF Hobby s.r.o. · 60k CZK register
  • 22 Jan 2026 for ŽIVÝ KRAJ - DESTINAČNÍ AGENTURA PRO KARLOVARSKÝ KRAJ, Z.S. · Inzerce v titulech RF Hobby s.r.o. · 75k CZK register
  • 14 Jan 2026 for Centrála cestovního ruchu - Jižní Morava, z.s.p.o. · Objednávka tématické inzerce · 70k CZK register

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Website technologies

Older, unverified list. Detection dates and supporting evidence are not yet available.

  • CookieScript
  • Google Tag Manager
  • Google Universal Analytics
  • PHP
  • Tailwind CSS
  • WordPress
  • jQuery
  • nginx