Free Tool

Subreddit Rules Checker

Check the posting rules and self-promotion policy for any subreddit before you post. Avoid bans by understanding karma minimums, account age requirements, and content restrictions.

Enter a subreddit above to check its rules.

How to use the Subreddit Rules Checker

  1. 1

    Enter the subreddit name

    Without the 'r/' prefix is fine. Both 'r/SaaS' and 'SaaS' work. The tool fetches data live from Reddit's official API.

  2. 2

    Read the posting signals

    At the top, we surface common posting restrictions detected from the rule text: self-promo policy, karma minimums, account-age requirements, link policy, and required flair.

  3. 3

    Review the full rules list

    Each numbered rule comes straight from the moderators. Read carefully — signals are best-effort heuristics, but the actual rules are the source of truth.

  4. 4

    Check site-wide rules

    Reddit's site-wide policies (collapsed at the bottom) apply everywhere on top of any subreddit-specific rules. Ignoring them can result in account-level action, not just a sub-level removal.

Why check subreddit rules before posting?

Reddit isn't a single platform — it's thousands of small communities, each with its own rules, norms, and moderation style. Posting in the wrong place, in the wrong way, or at the wrong time can get you removed, banned, or shadowbanned without warning.

Bans are usually permanent

Most subreddit bans aren't appealable. Moderators are volunteers, decisions are at their discretion, and reversals are rare. One rule violation can lock you out of an audience for years.

AutoModerator removes posts silently

Many subreddits run AutoModerator scripts that auto-remove posts failing filters (low karma, new accounts, banned domains, missing flair). You see your post on your profile, but no one else does.

Karma and account-age gates are common

High-value subreddits (r/SaaS, r/Entrepreneur, r/marketing, most large communities) require some baseline karma or account age before letting you post. Posting too early just wastes your best content.

Self-promo policies vary wildly

Some subreddits ban all self-promotion outright. Others have dedicated weekly threads (often Self-Promotion Saturday). Most expect you to follow Reddit's 9:1 / 10% rule. There is no universal standard.

Frequently asked questions

How are the posting signals detected?

+

We scan the rule text and the public subreddit description for common patterns — phrases like 'no self-promotion', 'X karma required', 'X days old', 'no external links', 'must have flair'. It's pattern matching against community-rule conventions, not perfect interpretation, so it's a starting point rather than the final word.

Are the detected signals always accurate?

+

They flag the most common types of restrictions, but they can miss nuance — for example, a rule that's lenient most of the time but strict during a specific event. Always read the full rule text shown below the signals, and when in doubt, check the subreddit's wiki or message a moderator.

What's the 9:1 (or 10%) rule on Reddit?

+

It's Reddit's site-wide guideline on self-promotion: at most 1 in 10 of your posts and comments should be self-promotional, with the other 9 being genuine engagement (helping others, contributing to discussions, sharing other people's content). Many subreddits enforce this strictly, even when their own rules don't say so.

Why do some subreddits show zero rules?

+

They might rely entirely on Reddit's site-wide rules and moderator discretion. Smaller subs often have informal community norms that aren't written down. The absence of rules isn't a green light — it usually means moderators have wide latitude to remove anything they consider off-topic or low-effort.

Will following the rules guarantee my post stays up?

+

No. Moderators have wide discretion and can remove posts they consider off-topic, low-effort, or against the spirit of the community — even if no specific rule was broken. Reading the rules dramatically reduces the risk of removal, but it doesn't eliminate it.

What about AutoModerator settings I can't see?

+

AutoModerator configurations are private to moderators. Some restrictions (like a hidden karma threshold or a list of banned domains) won't appear in the public rules at all — but our signal detection covers the most commonly mentioned ones, so it surfaces the majority of practical concerns for posters.

Where can I read the rules myself on Reddit?

+

On desktop, click the subreddit name to open its sidebar — rules appear under 'Rules' or 'Community Rules'. On mobile, tap the 'About' tab. Our tool fetches the same data via Reddit's API so you don't have to switch contexts when checking multiple subreddits.

Stop guessing. Start engaging.

ReplyMine tracks your chosen subreddits and surfaces the high-intent posts where your product fits the conversation — so you reply where it matters, not where it gets removed.

Start free trial