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Stack Exchange ○➛｜Definition｜1st｜20251119205401-00-⌔
Stack Exchange
Stack Exchange is a network of question-and-answer (Q&A) websites on topics in diverse fields, each site covering a specific topic, where questions, answers, and users are subject to a reputation award process. The reputation system allows the sites to be self-moderating.
All sites in the network are modeled after the initial site Stack Overflow which was created by Jeff Atwood and Joel Spolsky in 2008. Further Q&A sites in the network are established, defined, and eventually – if found relevant – brought to creation by registered users through a special site named Area 51.12
User contributions since May 2, 2018 are licensed under Creative Commons Attribution-ShareAlike 4.0 International. Older content, contributed while the site used the Creative Commons Attribution-ShareAlike 3.0 Unported license or the earlier Creative Commons Attribution-ShareAlike 2.5 Unported license, remains licensed under the license in force at the time it was contributed.[^4][^3]3
In June 2021, Prosus acquired Stack Overflow for US$1.8 billion, its first complete acquisition in the area of educational technology.4
Printed 2026-06-28.
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Link to original Footnotes
“All Sites”. Stack Exchange. Archived from the original on November 22, 2019. Retrieved April 1, 2017. ↩
“FAQ – Area 51 – Stack Exchange”. Stack Exchange, Inc. 2014. Archived from the original on August 7, 2020. Retrieved June 30, 2014. ↩
“Legal — Terms of Service”. Stack Exchange. December 11, 2014. Archived from the original on January 3, 2012. Retrieved December 21, 2014. ↩
Dummett, Ben (June 2, 2021). “WSJ News Exclusive | Stack Overflow Sold to Tech Giant Prosus for $1.8 Billion”. Wall Street Journal. ISSN 0099-9660. Archived from the original on October 29, 2021. Retrieved June 3, 2021. ↩
Stack Exchange ○➛｜Link｜1st｜20251021001049-00-●
Hot Questions - Stack Exchange
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