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SEO Term Definition

Social Signals

Social signals are engagement metrics from social media platforms (shares, likes, comments) that some SEOs believe correlate with search rankings, though Google has stated they are not direct ranking factors.

Reviewed by Alexander Yarovenko · Updated: 2026-07-03

What are Social Signals?

Social signals refer to the collective metrics of social media activity around a web page or brand — shares, likes, comments, retweets, pins, and other engagement indicators. The question of whether social signals directly influence Google search rankings is one of the longest-running debates in SEO.

Google's Official Position

Google has officially stated (multiple times, including from John Mueller) that social signals like Facebook shares or Twitter likes are not direct ranking factors. Google cannot consistently crawl all social media content (much of it is behind logins), making it an unreliable signal.

How Social Media Indirectly Affects SEO

  • Link acquisition — content shared widely on social media is more likely to be seen by bloggers and journalists who then link to it
  • Content discovery — social platforms can speed up Googlebot's discovery of new content
  • Brand searches — social media increases brand awareness, driving more branded searches (which Google treats as a quality signal)
  • Traffic amplification — social traffic to a page signals (to Google, indirectly) that users find the content valuable

Social Media SEO Best Practices

  • Use Open Graph tags (og:title, og:description, og:image) to control how your content appears when shared
  • Create shareable content formats — infographics, original research, listicles
  • Build an audience on relevant platforms to amplify content distribution
  • Ensure social media profiles are consistent with your NAP data
  • Social profiles often rank for branded queries — fully complete them