Over the last few years, Reddit has risen in influence to be a social channel that Google elevated in it’s search engine results for it’s user-generated content and also a source of valuable reviews for users.

Reddit is constructed as a network of smaller communities, known as Subreddits. The value of these Subreddits is in their independence and their self-moderation to avoid spamming. Redditors are notoriously anti-spam or self-promotion, making a space where trusted advice and reviews can be found (although the platform has its flaws).

If marketers approach Reddit in the right way, they can see strong brand awareness from an audience of 110.4 million daily active users participating in over 100,000 subreddits.

However, this article isn’t about marketing on Reddit, but a list to find all the Subreddits relevant to marketing and SEO.

Note: Reddit’s new update hides member count in the new UI, but you can still preview the member count upon entering the subreddit’s name in the search bar on mobile.

SEO Subreddits

r/TechSEO
Screenshot from Reddit, January 2026

To get started, look at some subreddits on SEO where you’ll sometimes find answers and insights from John Mueller, Danny Sullivan, Gary Illyes, and other well-known names in search.

  1. r/SEO – General SEO discussion with 445,000 members.
  2. r/bigseo – A community for SEOs with 127,000 members.
  3. r/TechSEO – The “…tech nerd side of SEO” with 41,000 members.
  4. r/localseo – A community for local SEO news, tips, and tricks with around 18,000 members.

Social Media Subreddits

r/Mastodon
Screenshot from Reddit, January 2025
  1. r/Instagram – An unofficial community for discussing all things Instagram with 1 million members.
  2. r/Mastodon – An unofficial community for discussing all things Mastodon with 37,000 members.
  3. r/reddit – An official community with 245,000 members.
  4. r/Twitter – An unofficial community for discussing all things X (Twitter) with 1.4 million members.
  5. r/youtube – An unofficial community for discussing all things YouTube with 3.3 million members.
  6. r/socialmedia – A place for social media marketers to discuss the latest social media news, developments, and tactics with 2.1 million members.
  7. r/ContentCreators – A community for content creators from YouTube, TikTok, Twitch, Instagram, and Spotify with over 57,000 members.

Product Subreddits

r/Google
Screenshot from Reddit, December 2025
  1. r/duckduckgo – Official community for the privacy–focused internet browser with 92,000 members.
  2. r/google – Unofficial community for Google product users with 3.5 million members.
  3. r/Wordpress – Unofficial community for WordPress users with 288,000 members.

Marketing Subreddits

r/adverstising
Screenshot from Reddit, December 2025
  1. r/marketing – A community for marketing and advertising professionals to discuss all aspects of marketing with 1.9 million members.
  2. r/content_marketing – A subreddit for content marketers and creators to explore content marketing strategy and tools with 169,000 members.

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Last Update: February 1, 2026