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r/ycombinator PUBLIC

News and discussion around startups and applying to Y Combinator. In 2005, Y Combinator created a new model for funding early stage startups. We invest $500,000 in every startup and work intensively with the founders for three months. For the life of their company, founders have access to the most powerful community in the world, essential advice, later-stage funding and programs, recruiting resources, and exclusive deals.

197,186 members
Created: Apr 2011
Language: EN
POSITIVE SENTIMENT
Last analyzed: Jun 21, 2026 04:00
Marketing Summary

r/ycombinator is a PUBLIC community on Reddit with over 197,186 members. It currently has a positive sentiment with an engagement rate of 0.7%. With a community friendliness score of 80, this subreddit presents a moderate conversion potential for authentic brand participation. Strict rules against self-promotion are in place, so marketing should focus strictly on value-driven community engagement.

80
Friendliness Score
0.7%
Engagement Rate
57
Conversion Potential
2.0%
Monthly Growth
Marketing Analytics
31.4
Avg Post Score
29.5
Avg Comments
25
Brand Mentions
0
Posts/Hour
Top Post Types
text 100.0% (50)
Peak Activity Hours
Times shown in UTC (Coordinated Universal Time) Local times are automatically converted based on your browser's timezone
10AM UTC
High
~40 active
4AM UTC
Medium
~15 active
8PM UTC
Low
~10 active
Community Culture
Community Sentiment POSITIVE
Friendliness Score: 80/100
6.2K
Avg User Karma of Top Posts
30%
Commercial Acceptance
Content Preferences
Moderation Patterns
Rules & Compliance
8
Total Rules
Images
Videos
Self Promotion
Require Flairs
Public
Posting Requirements & Restrictions
No limit
Minimum Karma
No limit
Min Account Age (days)
SELF
Submission Type
Enabled
Flair System
Subreddit Rules
  1. Read the stickied post at the top of the sub.:
  2. Don't be a jerk.
  3. trolling, harassment, ad hominem. Flame wars don’t contribute to discussions, and don’t help anyone.
  4. Use the search before making a new post.:
  5. Use the megathreads for feedback and application discussions.: Use the megathreads for feedback and application discussions.
  6. No self promotion.:
  7. No hiring or co-founder search posts.: Everyone is constantly either hiring or on the lookout for a co-founder. Please use the cofounder matching tool at https://www.ycombinator.com/cofounder-matching.
  8. No memes, politics, or shitposts.: Find another sub for that. Low effort posts will be removed.
  9. No solicitation of surveys, DMs, external groups, etc: Posts in this sub should be applicable to other members of this community, or promote discussion. Not requests that only apply to the poster.
  10. No unplanned AMAs.:
  11. No discussions about VCs or other accelerators.: These posts are better fitted for r/startups or r/startupaccelerators — you’ll likely get more insights there.
Restricted Keywords
Marketing Data Updated
Jun 21, 2026
Rules Updated
Jul 22, 2026
Compliance Updated
Jul 22, 2026

What is r/ycombinator?

r/ycombinator is a public Reddit community created in April 2011 with over 197,186 members. News and discussion around startups and applying to Y Combinator. In 2005, Y Combinator created a new model for funding early stage startups. We invest $500,000 in every startup and work intensively with the founders for three months. For the life of their company, founders have access to the most powerful community in the world, essential advice, later-stage funding and programs, recruiting resources, and exclusive deals.

The community has a positive sentiment and an engagement rate of 0.7%. With a friendliness score of 80, it is considered very welcoming to new members.

Self-promotion is not allowed, so marketing efforts should focus on providing genuine value to the community.

Frequently Asked Questions about r/ycombinator

r/ycombinator is a public Reddit community with 197,186 members. News and discussion around startups and applying to Y Combinator. In 2005, Y Combinator created a new model for funding early stage startups. We invest $500,000 in every startup and work intensively with the founders for three months. For the life of their company, founders have access to the most powerful community in the world, essential advice, later-stage funding and programs, recruiting resources, and exclusive deals.

With a conversion potential of 57 and an engagement rate of 0.7%, r/ycombinator presents a moderate opportunity for authentic brand participation. Self-promotion is not allowed, so focus on providing genuine value to the community.

r/ycombinator has 8 community rules.

r/ycombinator has an engagement rate of 0.7% with an average post score of 31.4 and an average of 29.5 comments per post. The community sentiment is positive with a friendliness score of 80 out of 10.
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