| Domain name | Date | Price | Broker |
| rightside.co +OA | June 2017 | $ 213,000,000.00 USD | Donuts |
| .co +OA | March 2014 | $ 109,000,000.00 USD | Neustar |
| o.co | July 2010 | $ 350,000.00 USD | Private sale |
| mobile.co | July 2014 | $ 238,000.00 USD | Private sale |
| cove.co | September 2021 | $ 175,000.00 USD | Grit Brokerage |
| float.co | September 2021 | $ 150,000.00 USD | Grit Brokerage |
| follow.co | November 2022 | $ 140,000.00 USD | Grit Brokerage |
| cv.co | September 2024 | $ 130,000.00 USD | Sedo |
| cv.co | August 2025 | $ 130,000.00 USD | Sedo |
| plot.co | February 2022 | $ 120,000.00 USD | Grit Brokerage |
| 8.co | February 2015 | $ 115,000.00 USD | HeritageAuctions |
| onlinecasino.co | October 2011 | $ 100,000.00 USD | Private sale |
| formula.co | January 2023 | $ 92,000.00 USD | Grit Brokerage |
| feed.co | June 2018 | $ 85,000.00 USD | Sedo |
| heir.co | December 2021 | $ 85,000.00 USD | Grit Brokerage |
| kitchen.co | February 2021 | € 70,000.00 EUR | Sedo |
| cruises.co | September 2012 | $ 82,500.00 USD | Private sale |
| bitnation.co | August 2022 | $ 81,000.00 USD | GoDaddy auction |
| e.co | August 2010 | $ 81,000.00 USD | Sedo |
| business.co | May 2011 | $ 80,000.00 USD | Sedo |
| mesothelioma.co | September 2010 | $ 76,000.00 USD | .CO Registry |
| auto.co -RNM | April 2017 | $ 75,001.00 USD | NameJet auction |
| versus.co | June 2021 | $ 75,000.00 USD | Grit Brokerage |
| fun.co | June 2015 | $ 70,000.00 USD | DomainMarket |
| seam.co | May 2022 | $ 65,000.00 USD | Grit Brokerage |
|
| casino.co -RNM | February 2011 | $ 60,000.00 USD | Sedo auction |
| mega.co | January 2013 | $ 60,000.00 USD | RocketName |
| garden.co | November 2025 | € 50,000.00 EUR | Sedo |
| d.co | December 2023 | $ 55,499.00 USD | GoDaddy auction |
| twelve.co | June 2021 | $ 54,000.00 USD | Grit Brokerage |
| autoglass.co | October 2010 | $ 53,000.00 USD | .CO Registry |
| garden.co | November 2024 | € 50,000.00 EUR | Sedo |
| denver.co | October 2010 | $ 50,001.00 USD | .CO Registry |
| indiahub.co | October 2018 | $ 50,001.00 USD | GoDaddy auction |
| ed.co | August 2013 | $ 50,000.00 USD | GoDaddy |
| fx.co | January 2013 | $ 50,000.00 USD | Sedo |
| lu.co | June 2022 | $ 50,000.00 USD | GoDaddy auction |
| news.co | December 2011 | $ 50,000.00 USD | Sedo |
| i.co | December 2023 | $ 49,999.00 USD | GoDaddy auction |
| giddy.co | December 2021 | $ 49,000.00 USD | Grit Brokerage |
| payments.co | February 2023 | € 45,000.00 EUR | Sedo |
| dolphin.co | February 2012 | $ 48,000.00 USD | .CO Registry |
| payments.co | February 2025 | € 45,000.00 EUR | Sedo |
| pay.co | February 2013 | $ 46,087.00 USD | Sedo |
| dao.co | December 2021 | $ 45,000.00 USD | Sedo |
| dao.co | December 2023 | $ 45,000.00 USD | Sedo |
| finance.co | June 2011 | $ 45,000.00 USD | Sedo |
| waw.co | November 2015 | $ 45,000.00 USD | GoDaddy auction |
| duiattorney.co | October 2010 | $ 44,500.00 USD | .CO Registry |
| duilawyer.co | October 2010 | $ 43,000.00 USD | .CO Registry |
|
| ll.co | May 2016 | $ 42,000.00 USD | GoDaddy auction |
| alias.co | February 2021 | $ 40,000.00 USD | Grit Brokerage |
| forex.co | January 2013 | $ 40,000.00 USD | Sedo |
| internet.co | May 2011 | $ 40,000.00 USD | Sedo |
| loud.co | December 2021 | $ 40,000.00 USD | Grit Brokerage |
| 3.co | December 2023 | $ 39,999.00 USD | GoDaddy auction |
| xe.co | March 2013 | $ 37,500.00 USD | GoDaddy |
| buy.co | July 2021 | $ 35,000.00 USD | Sedo |
| mill.co | October 2021 | $ 35,000.00 USD | Sedo |
| nightcap.co | May 2022 | $ 35,000.00 USD | Grit Brokerage |
| wav.co | November 2025 | € 30,000.00 EUR | Sedo |
| micro.co | December 2023 | $ 33,500.00 USD | GoDaddy auction |
| odds.co | November 2019 | £ 25,000.00 GBP | Sedo |
| men.co | August 2011 | $ 32,000.00 USD | Sedo |
| ru.co | May 2016 | $ 31,500.00 USD | GoDaddy auction |
| taobao.co | October 2010 | $ 31,500.00 USD | .CO Registry |
| wav.co | November 2024 | € 30,000.00 EUR | Sedo |
| dating.co | May 2013 | $ 30,000.00 USD | Sedo |
| music.co | February 2011 | $ 30,000.00 USD | Sedo auction |
| outpace.co | November 2022 | $ 30,000.00 USD | Grit Brokerage |
| porn.co | January 2021 | $ 30,000.00 USD | GoDaddy auction |
| sugar.co | August 2012 | $ 30,000.00 USD | Sedo |
| coach.co | November 2020 | € 25,000.00 EUR | Sedo |
| civic.co | September 2015 | $ 27,000.00 USD | Uniregistry |
| software.com.co | March 2012 | € 20,000.00 EUR | Sedo |
|
| home.co | October 2013 | $ 26,000.00 USD | Sedo |
| property.co | August 2010 | $ 25,600.00 USD | Sedo |
| ink.co | December 2023 | $ 25,505.00 USD | GoDaddy auction |
| gay.co | October 2011 | $ 25,000.00 USD | HuntingMoon |
| lead.co | November 2012 | $ 25,000.00 USD | .CO Registry |
| light.co | April 2014 | $ 25,000.00 USD | AfterNIC |
| scalable.co | September 2019 | $ 25,000.00 USD | Sedo |
| wine.co | September 2015 | $ 25,000.00 USD | |
| women.co | July 2011 | $ 25,000.00 USD | Sedo |
| home.co | November 2012 | $ 24,999.00 USD | Sedo auction |
| ban.co | October 2010 | $ 24,500.00 USD | .CO Registry |
| casinos.co -RNM | November 2012 | $ 24,500.00 USD | Sedo auction |
| sex.co -RNM | September 2013 | € 17,890.00 EUR | Sedo auction |
| jewelry.co | May 2012 | $ 24,000.00 USD | Sedo auction |
| sales.co | May 2023 | $ 24,000.00 USD | Sedo |
| sales.co | May 2025 | $ 24,000.00 USD | Sedo |
| taobao.co | October 2021 | $ 23,007.00 USD | GoDaddy auction |
| aspen.co | October 2010 | $ 22,500.00 USD | .CO Registry |
| hearusroar.co +OA | May 2018 | $ 22,500.00 USD | Flippa auction |
| pokerstar.co | September 2010 | $ 22,500.00 USD | .CO Registry |
| offices.co | September 2020 | € 19,000.00 EUR | Sedo |
| prompt.co | August 2023 | $ 22,249.00 USD | GoDaddy auction |
| porn.co | November 2019 | € 20,000.00 EUR | Sedo |
| onlinepoker.co | March 2012 | $ 22,000.00 USD | Sedo |
| shop.co | February 2011 | $ 22,000.00 USD | Sedo auction |
|
Total price amount in this set of 100 domain name sales is 327,370,891.99 USD; average price is 3,273,708.92 USD.