Qiita

Qiita is a Japanese knowledge-sharing service built around short technical posts, called Tips, that engineers write about programming languages, cloud tools and AI development. Readers follow other users and specific tags, save useful posts to a personal stock, and suggest edits to existing articles. The site tracks weekly and monthly tag rankings, alongside a leaderboard of the most active contributors, and hosts organization pages for companies that maintain their own technical blogs on the platform.

Advertising runs through Qiita for Business, which reaches about 1.5 million registered members and more than 8 million monthly unique users, with roughly 65% of that audience involved in tool adoption decisions. Ad formats include banner display, a demand-side platform called Qiita DSP for retargeting engineers off-site, single-sponsor email campaigns, sponsored articles produced with an in-house editorial team, article-posting campaigns, and sponsorship of Qiita's own conferences, hackathons and its winter Advent Calendar event. Sales houses named in its ads.txt file include fluct, MicroAd, Geniee and Kiosked, across 209 listed ad systems.