Subreddit Activity Checker

Subreddit stats that tell you if a community is alive

Member count is the stat everyone looks at, and the one that tells you the least. A subreddit can have 500,000 members and three posts a week, because people join and never leave. The checker above looks at what the community is doing now: it reads the 100 most recent posts and measures how often people post, how long ago the last post went up, and how much engagement posts get.

The stats that matter

• Posts per day. The best single measure of whether a subreddit is alive. It is calculated from the dates of the latest 100 posts.
• Time since the last post. A subreddit where the newest post is two weeks old is asleep, whatever its size.
• Posts in the last 24 hours and 7 days. The recent rhythm, which catches communities that are slowing down.
• Average upvotes and comments per post. Whether posts get read. A busy subreddit where every post has zero comments is a place people post, not a place people talk.

What the activity tiers mean

The checker gives each subreddit one of six tiers:

• Dead: almost no posts, and nothing new for over a month.
• Dying: under one post every two days, with gaps of a week or more.
• Slow: fewer than 2 posts a day. Quiet, but not gone.
• Active: 2 to 10 posts a day. A steady community.
• Very Active: 10 to 50 posts a day.
• Hyperactive: 50 posts a day and more. A major subreddit where posts move fast.

For taking part, and for marketing, Active and Very Active are usually the sweet spot. Posts stay visible long enough to be read, and there are enough people to reply. In a Hyperactive subreddit, a post can drop off the front page within the hour. In a Slow one, a good post can stay on top for days.

How to check if a subreddit is dead, by hand

Open the subreddit and sort by New. Look at the dates of the latest posts and the number of comments on each. If the newest post is weeks old, or the last ten posts have no replies, the community is dead or close to it. The checker does the same reading on 100 posts at once and turns it into numbers.

Also look at the moderators. A subreddit whose moderators are inactive often fills with spam or gets restricted, which kills it even if people still visit.

Can you track subreddit growth?

The checker measures activity today, not member history. For large communities, a few third-party sites keep charts of member counts over time. For small and medium subreddits, recent activity is a better signal anyway: a community that posts every day is growing in the way that matters, whatever the member curve says.

Using it with other tools

Found a subreddit with the Subreddit Finder? Check it here before you spend time in it. Hesitating between several? The Subreddit Comparison puts them side by side. And before posting, the Subreddit Rules Checker tells you what the community allows.

Checking a subreddit once tells you where to go. If you want to know when someone in those communities asks for a product like yours, a Reddit monitoring tool watches them for you and only alerts you when a thread is worth your time.