r/Seinen
Seinen Anime and Manga
Founded October 2012 · Public — anyone can post
A subreddit dedicated to all things related to seinen anime and manga including discussions, reviews, and art
Members
101,161
101K
Online now
—
not captured in the last snapshot
Posts per day
—
no sample yet
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
+1.1%
+1.1K members · ≈24d
Promo tolerance
—
not assessed yet
Last post
—
no sample yet
Distinct posters
—
no sample yet
Tracking since Aug 20 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Similar by content
Communities that discuss what r/Seinen discusses.
Everything and anything manga! (manhwa/manhua is okay too!) Discuss weekly chapters, find/recommend a new series to read, post a picture of your collection, lurk, etc!
Subreddit about the seinen supernatural mystery manga Dorohedoro by Q Hayashida.
A reddit for fans of comic books, graphic novels, and digital comics.
Benvenuto in r/AnimeItaliaOtaku, la community italiana per tutti gli amanti di anime, manga e cultura giapponese! 🎌 Qui puoi discutere delle tue serie preferite, condividere fan art, cosplay , partecipare a sondaggi e restare aggiornato sulle ultime novità. Rispettiamo tutti e vogliamo un ambiente positivo per gli otaku di ogni livello. Unisciti a noi, raccontaci i tuoi anime preferiti e divertiti con la nostra community! 🚀
See the full lists on similar subreddits.
r/Seinen — frequently asked
How many members does r/Seinen have?
r/Seinen has 101,161 members as of our most recent crawl on Sep 27. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/Seinen growing?
Over the last ≈24 days r/Seinen changed by +1.1% — a gain of 1.1K members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".
How active is r/Seinen?
We don't have a reliable posting-rate sample for r/Seinen yet. Subscriber count alone is a poor guide to whether a community is active, so treat this one as unverified until the next sample lands.
When was r/Seinen created?
r/Seinen was founded in October 2012 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Can I promote my product in r/Seinen?
We don't have a promo-tolerance read for r/Seinen yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/Seinen for mentions?
Hit Watch on this page. Prowlo starts crawling r/Seinen into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/Seinen's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/Seinen's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
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