Social Search

Search no longer starts and ends on Google. Billions of queries happen daily on YouTube, Reddit, and TikTok, and content from those platforms now feeds directly into AI-generated answers across Google AI Overviews, ChatGPT Search, and Perplexity.

Social search is the act of using social platforms to find information, recommendations, or answers, rather than a traditional search engine. It is not a replacement for Google. The accurate picture is fragmentation: users distribute queries across platforms depending on what they are looking for. Video tutorials and product discovery go to TikTok and YouTube. Authentic, experience-based answers go to Reddit. Transactional and factual queries still go to Google.

The SEO implication is that social platforms are now both discovery channels in their own right and source material for AI answers. Reddit is the second most cited source across ChatGPT Search, Perplexity, and Google AI Mode. YouTube videos appear in roughly 29% of Google AI Overviews. A brand absent from these platforms is absent from a growing share of AI-generated answers too.

Core social search elements

  • Reddit SEO. Reddit processes 28 million queries per day through Reddit Answers and is the most cited social source in AI search. Google now quotes Reddit threads directly inside AI Overviews. This covers how to optimise Reddit presence and what drives citation.
  • YouTube Search. The world’s second-largest search engine handles 3 billion searches daily and feeds into Google AI Overviews at a higher rate than most web publishers. This covers how YouTube’s ranking signals differ from Google web search and how to optimise for both.
  • TikTok Search. 49% of US consumers use TikTok as a search engine, rising to 65% of Gen Z. This covers what content wins in TikTok search, how TikTok’s discovery model differs from intent-based search, and where it fits in a multi-platform strategy.
  • Search Everywhere Optimisation. The strategic framework for building visibility across Google, YouTube, Reddit, TikTok, and AI answer engines at the same time: what it requires, what it does not, and how social content becomes an asset for AI citation.

Why social search matters

The case for social search is no longer primarily about Gen Z discovery habits. It is about AI citations. Google’s May 2026 update integrated direct quotes from Reddit and other forums into AI Overviews. Reddit alone has 23.6 million pages cited in AI responses, appearing in over 92% of AI search opportunities across major platforms.

Separately, social platforms now account for a meaningful share of all web discovery. About one in three US consumers start a search on TikTok, Instagram, or YouTube rather than Google. Social platforms collectively account for 5.5% of all desktop searches. Those numbers are modest compared to Google, but the AI citation angle means that social presence influences visibility far beyond the platforms themselves.

Social search and E-E-A-T

The content that performs in social search is the same content that earns AI citations: specific, first-hand, credible, and clearly authored. Reddit threads rank and get cited because they contain genuine user experience. YouTube videos surface because they demonstrate expertise directly. TikTok content performs in search when it answers a clear question with concrete information.

Anonymous or thin content does not earn citations regardless of the platform. A brand building social search presence through genuine participation, named contributors, and accurate information is building the same authority signals that AI systems draw on across all surfaces.

In this Social Search guide