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Experience and excellence in leading tech solutions

WE ARE CESNET
WE UNITE SCIENCE

We deliver advanced ICT services for science, research, and education. As pioneers of the first academic networks nearly 30 years ago, we maintain them to this day, ensure secure access, and provide robust environments for data storage, high-performance computing, and team collaboration. Our members include public universities and the Academy of Sciences of the Czech Republic.

About CESNET
  • Clock icon 28. April 2025News

    Discover the magic of quantum entanglement with us

    Are you wondering what violates not only Einstein's laws but also common sense? Come to the lecture on 15 May at CESNET and hear the latest news in quantum cryptography. More information here. 

  • Clock icon 1. April 2025News

    We invite you to IPv6 Day 2025

    On Friday, 6 June 2025, the next edition of the traditional IPv6 Day conference will take place, to which we cordially invite you. Come and get inspired, hear the latest news and meet members of the community. The event is organized together with our partners CZ.NIC and NIX.CZ at the National Technical Library in Prague.

  • Clock icon 11. March 2025News

    Remembrance Vladimír Pavlík

    Vladimír Pavlík left us forever on 27 February 2025. Vláďa was part of the team of people who brought the Internet to the Czech Republic, or more precisely, connected the Czech Republic to the global Internet. He was able to talk about this period very beautifully and with humour. He was one of the last living true experts on the first commercial Unix platforms, such as the SunOS and later Solaris operating systems from SUN. Managing these systems was a real art, comparable, for example, to playing the violin, which he also mastered. At CESNET, for many years, he w
  • Clock icon 28. February 2025News

    Remembering Pavel Vachek

    Pavel Vachek left us forever on February 3, 2025. His name brings to mind words such as modesty, humility, diligence, willingness, reliability, generosity. And such First Republic gentlemanliness. And a great outlook. He could talk to anyone, not only about work, but also about literature, politics, family, faith - in short, about life. But underneath the kind, unassuming veneer, there was also an expert with immense knowledge, which he was happy to impart. Andrea Kropáčová: Pavel was one of my first teachers after joining CESNET. In his gentle and non-violent way, he trans
  • Clock icon 4. February 2025News

    A major milestone in the CESNET network infrastructure

    The Institute of Physics of the Czech Academy of Sciences became the first institution whose connection to the CESNET backbone network (e-INFRA CZ) was upgraded to 400 Gb/s!

  • Clock icon 21. January 2025News

    Jihlava Polytechnic College becomes a full member of CESNET

    We are very pleased that the Polytechnic University of Jihlava (VŠPJ) has become the 28th full member of our association. This is an exceptional event - VŠPJ is the first ever new full member since CESNET was founded in 1996.

We push boundaries...

We explore new frontiers in information and communication technologies, transforming our research into practical, advanced services.

We foster the development and adoption of state-of-the-art technologies for a more connected future.

...and we're here for you:

0+ 450 000+
users
0+ 120+
PB of data storage
0 41 288
CPU
0 29
years of experience

Our services

Network

CESNET – an academic computer network with a range of ICT services.

Computing

MetaCentrum – processing big data and demanding tasks.

Data storage

Tools for backing up, archiving and sharing user data.

Security

Robust cybersecurity monitoring and enforcement.

Multimedia

Services for remote study and work, for individuals and teams.

Identity

Secure login to CESNET & a portfolio of connected services.

Dashed line

News

  • Clock icon 28. April 2025

    Discover the magic of quantum entanglement with us

    Are you wondering what violates not only Einstein's laws but also common sense? Come to the lecture on 15 May at CESNET and hear the latest news in quantum cryptography. More information here. 

  • Clock icon 1. April 2025

    We invite you to IPv6 Day 2025

    On Friday, 6 June 2025, the next edition of the traditional IPv6 Day conference will take place, to which we cordially invite you. Come and get inspired, hear the latest news and meet members of the community. The event is organized together with our partners CZ.NIC and NIX.CZ at the National Technical Library in Prague.

  • Clock icon 11. March 2025

    Remembrance Vladimír Pavlík

    Vladimír Pavlík left us forever on 27 February 2025. Vláďa was part of the team of people who brought the Internet to the Czech Republic, or more precisely, connected the Czech Republic to the global Internet. He was able to talk about this period very beautifully and with humour. He was one of the last living true experts on the first commercial Unix platforms, such as the SunOS and later Solaris operating systems from SUN. Managing these systems was a real art, comparable, for example, to playing the violin, which he also mastered. At CESNET, for many years, he w
  • Clock icon 28. February 2025

    Remembering Pavel Vachek

    Pavel Vachek left us forever on February 3, 2025. His name brings to mind words such as modesty, humility, diligence, willingness, reliability, generosity. And such First Republic gentlemanliness. And a great outlook. He could talk to anyone, not only about work, but also about literature, politics, family, faith - in short, about life. But underneath the kind, unassuming veneer, there was also an expert with immense knowledge, which he was happy to impart. Andrea Kropáčová: Pavel was one of my first teachers after joining CESNET. In his gentle and non-violent way, he trans
  • Clock icon 4. February 2025

    A major milestone in the CESNET network infrastructure

    The Institute of Physics of the Czech Academy of Sciences became the first institution whose connection to the CESNET backbone network (e-INFRA CZ) was upgraded to 400 Gb/s!

  • Clock icon 21. January 2025

    Jihlava Polytechnic College becomes a full member of CESNET

    We are very pleased that the Polytechnic University of Jihlava (VŠPJ) has become the 28th full member of our association. This is an exceptional event - VŠPJ is the first ever new full member since CESNET was founded in 1996.

Events

  • Clock icon 6. June 2025

    IPv6 Day 2025

    The 10th anniversary edition of the IPv6-focused conference, co-organized by CESNET, CZ.NIC and NIX.CZ, is approaching. This year, the event will once again take place at the National Library of Technology in Prague, which also hosted the very first edition. The call for presentations and lightning talks is now open – get involved and share your experience!

    The program is in Czech.

  • Clock icon 5. June 2025 - 6. June 2025

    Forensic Training II.

    The two-day training further develops the basics introduced in the previous training "Forensic Training I."

    The program is in Czech.

  • Clock icon 3. June 2025 - 4. June 2025

    Forensic Training I.

    A hands-on two-day training course that provides an introduction to forensic information technology analysis.

    The program is in Czech.

  • Clock icon 15. May 2025

    Na hranici mezi magií a fyzikou. Kouzlo kvantového provázání

    Zajímá vás, co porušuje nejen Einsteinovy zákony, ale i zdravý rozum?

    Kvantové provázání je fascinující jev na pomezí fyziky a magie, který otevírá nové možnosti ve vědě i technologiích. Pokud se chcete dozvědět, jak pomocí nejmenších částic světla – fotonů – šifrujeme a bezpečně přenášíme data, tahle přednáška je právě pro vás.

    Dozvíte se, jak funguje kvantová kryptografie – průlomová technologie, která umožňuje vytvářet šifrovací klíče, jež jsou prakticky neprolomitelné. Budoucnost bezpečné komunikace je tady – a začíná na úrovni jednotlivých částic světla.

We drive innovation and constantly modernize our network and services. Our research benefits the academic community and advances science across the Czech Republic.

Our projects