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Logo NK.svg
Type of businessPrivately held company
Type of site
Social network
FoundedNovember 11, 2006; 15 years ago (2006-11-11)
DissolvedJuly 27, 2021; 12 months ago (2021-07-27)
OwnerRingier Axel Springer Polska

NK.pl, formerly Nasza-klasa.pl (English: Our-class.pl), was a Polish school-based social networking service used by alumni and students.[1] NK.pl was owned and administered by Ringier Axel Springer Polska.[2]


NK.pl was launched on 11 November 2006 by Maciej Popowicz, Paweł Olchawa, Michał Bartoszkiewicz, and Łukasz Adziński, four college students studying computer science at the University of Wrocław.[3][failed verification] The company was headquartered in Wrocław, Poland, and its name came from the song "Nasza Klasa" by Jacek Kaczmarski.[citation needed]

The website enjoyed success, and one 2009 study called it a "model example of the ‘rags to riches’ ideal of an enterprise construed with no financial funding and no institutional support (neither from ASP/ISP corporations nor from central/local administration)".[4] In 2009, the service had 13.5 million active users.[5] NK.pl then ranked among the top five websites used in Poland, behind Google.pl, Onet.pl, and Wirtualna Polska, and it was visited by more than 50% of Polish Internet users each month (with 10% of the traffic coming from abroad).[4]

As of July 2009 86% of its users lived in Poland, according to Alexa. The site was also popular in Norway, where it was the fifth most popular social networking website in 2009.[6][failed verification] In June 2010, a rebranding and changes to terms of use demanding that users allow the portal to use their profile photo commercially along with select private information, triggered mass exodus.[citation needed] As of August 2014 the number of registered users had plummeted to less than 7 million, with many users having switched to Facebook.[7]

On May 26, 2021, NK.pl announced its closure effective July 27 of the same year.[2]


Registered users could pick their school and graduation year. Users were also able to create personal pages with details about their life and past education.

NK.pl offered a wide variety of privacy settings, additionally offering up-to-date advice and instructions about privacy on NK.pl as well as the portal.[8][clarification needed] It had a trust and safety team that worked with law enforcement to resolve matters related to threatening and dangerous posts and other illegal activity.[citation needed]

NK.pl also cooperated with childcare services, such as the Nobody's Children Foundation, which takes care of psychological needs and healthy mental development of children.[8][failed verification]

See also[edit]


  1. ^ Urszula, Jurgiel. "Social death of social networks". Retrieved 4 April 2013.
  2. ^ a b "Zamknięcie serwisu NaszaKlasa.pl". wiadomosci.onet.pl. Onet. Retrieved 27 May 2021.
  3. ^ http://wroclaw.wyborcza.pl/wroclaw/1,35769,4526522.html[dead link]
  4. ^ a b Malachowski, Andrzej (2009). "Phenomenon of Nasza klasa (Our Class) Polish social network site" (PDF). Issues in Informing Science and Information Technology. 6: 366. doi:10.28945/1065.
  5. ^ Jan Samołyk. "NK gra z WOŚP!". NK.pl. Retrieved 2011-10-24.
  6. ^ "World's Top Social Networking Sites". Bloomberg Business. Retrieved 2 February 2015.
  7. ^ "Nasza Klasa. Jak radzi sobie NK w erze Facebooka?". se.pl. 6 August 2014.
  8. ^ a b "Polityka Prywatności – Ogólne Standardy Ochrony". NK.pl. Retrieved 4 April 2013.

External links[edit]