Reddit Dominates Google's Forums

New analysis reveals the sheer dominance of Reddit in Google's 'Discussions and forums' search results. The popular discussion platform appears in a staggering 83.9% of these specialized search result pages globally.

This finding comes from a deep dive into 145 million U.S. Google search results conducted by Ahrefs, a prominent SEO software company. The study identified the 'Discussions and forums' feature in 11.7% of all searches analyzed. Reddit's overwhelming presence underscores its role as a go-to source for user-generated content and community insights when users seek specific answers or discussions online.

The research, led by Glen Allsopp, Head of Marketing Strategy & Research at Ahrefs, highlights how concentrated this SERP feature is. Just three sites, Reddit, Facebook, and Quora, account for a combined 76.75% of all links appearing in these discussion-focused results. This concentration suggests Google’s algorithms heavily favor established platforms with vast amounts of user-generated content.

Facebook and Quora's Strong Showing

Following Reddit's lead, Facebook emerged as the second most prevalent site, appearing in 38.3% of relevant SERPs. This is largely driven by public Facebook Groups, which have become a significant reservoir of niche information and community discussions.

Quora, a long-standing Q&A platform, secured the third spot with 32% prevalence. Notably, the analysis indicates Facebook overtook Quora in prominence for these results in early 2026, signaling a shift in how users engage with and how Google surfaces community-driven answers.

StartupHub.ai data shows Quora with a score of 64/100, while Facebook scores higher at 81/100, reflecting Facebook's broader platform engagement and content volume. Reddit itself, a key competitor in this space, has a StartupHub score of 65/100.

The Long Tail of Forum Results

While Reddit, Facebook, and Quora dominate, other sites also capture a slice of these results. JustAnswer, Mayo Clinic, and Stack Exchange are among the top domains, indicating Google’s willingness to surface diverse sources, including expert advice and technical Q&A sites.

The top 10 domains collectively account for 84.87% of all links in this feature. This highlights a significant long tail, where domains ranked 501st to 1,000th contribute a mere 1.49% of visibility. The overall landscape is thus heavily curated towards a few major players.

Informational Intent and Query Length

The 'Discussions and forums' feature overwhelmingly serves queries with informational intent, accounting for 98.7% of appearances. This aligns with user behavior: when seeking specific, often nuanced, information, people turn to communities for real-world experiences and peer advice.

The feature also scales with query length. It is significantly more likely to appear for longer, more complex search queries, with 43.2% of appearances tied to queries of five or more words. This suggests Google uses the feature to address detailed user needs that might not be fully satisfied by single authoritative articles.

Platform Age and URL Reliance

Interestingly, the age of a domain did not correlate with its appearance in these results. The average domain age across the top 1,000 was over 21 years, but the youngest prominent domain was just under four years old. This suggests that while established sites benefit from historical content, newer, active forums can still break through.

A surprising finding was the reliance of some sites on a single URL for a substantial portion of their feature presence. Twenty-seven domains had one URL contributing at least 10% of their overall visibility in the 'Discussions and forums' SERP feature. This points to the power of highly optimized, evergreen threads or discussions for driving consistent traffic from search.

Implications for Marketers and Businesses

For marketers and businesses, this analysis reinforces the importance of community engagement. Appearing in Google's 'Discussions and forums' results can drive highly qualified traffic, as these users are actively seeking answers and solutions.

The dominance of Reddit and Facebook suggests that fostering presence on these platforms is crucial. However, the research also implies that niche forums, if well-managed and relevant, can still carve out visibility.

The continued prominence of these community-driven results on Google signals a trust in collective intelligence. As AI-powered search evolves, the ability of these platforms to surface authentic, human-generated insights will likely remain a key differentiator.

The full analysis is available on the Ahref Blog.