r/Defcon↗
The unofficial subreddit of world's largest hacker convention!
65k subscribers38 posts / mo in Sep 202626 authors / mosince 2008
r/Defcon has 65k members (+19% over the last 12 months). It gets about 38 posts a month from 26 people. Top topics: Hacking Conferences, Anime Conventions and Badges.
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How r/Defcon has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/Defcon
Top topics
Share of the subreddit's posts
- Hacking Conferences21%
- Anime Conventions0.6%
- Badges0.4%
- Tech Meetups & Networking0.4%
- Conventions & Comics0.3%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Caesars Home Page
- Tindie
- Wolfram
- etsy
- eBay
Everything else about r/Defcon
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research