Top Cited Domains on Google AI Overview (April 2026) | AI Citation Data

Google AI Overview Citation Share - April 2026

The top 16 websites Google AI Overview cited most in April 2026, ranked by share of all citations, with notes for SEO teams working on generative engine optimization (GEO).

The Most Cited Domains on Google AI Overviews in April 2026

Based on prompts and citations tracked from Mar 31 - Apr 29, 2026. Citations are tracked from search responses using Google AI Overviews (inline/side panel).

What this means for you

April's hierarchy is clear: YouTube leads at 3.77%, Reddit follows at 2.25%, and LinkedIn posts its strongest showing of the year at 0.92%, ahead of Facebook (0.78%) and even google.com itself (0.61%). Since AI Overviews inherit Google Search's trust signals, this is a snapshot of which platforms Google considers most quotable right now.

It's a strikingly different profile from ChatGPT's citation mix: video and professional networks rank high, and no single domain comes close to dominating. Everything after the top five sits below 0.5%; much of the AI Overview real estate is still decided in the long tail.

How to act on it

Google AI Overview Citation Share March vs April 2026

Side-by-side comparison of citation share for the top domains on Google AI Overview between March and April 2026.

What this means for you

After March's across-the-board surge, April was a month of consolidation. Reddit was the clearest winner, climbing from 1.98% to 2.25% (up 14%) for its third straight monthly gain, while YouTube plateaued at the top (3.69% to 3.77%). The notable loser was google.com, which gave back a third of its share, falling from 0.89% to 0.61%. LinkedIn kept grinding upward (0.85% to 0.92%), and nearly everything else moved less than 0.05 points, a reminder that most month-to-month movement happens among a handful of domains while the rest of the chart holds steady.

How to act on it

How we collect this data

We collect millions of prompt responses, citations, and click data from the actual user interfaces of major AI platforms: over 26 billion data points and growing. This gives us one of the largest datasets on how AI search engines cite sources and recommend brands.

Real UI monitoring

Data straight from the interfaces of ChatGPT, Gemini, Perplexity, Claude, AI Overviews, and more.

26B+ data points

Over 26 billion analyzed citations, prompts, and responses, one of the largest AI search datasets available.

Continuously updated

Refreshed constantly so the trends you see reflect the latest behavior of AI search engines.

Aggregated & public

Published freely for the GEO community, based on aggregated, non-identifiable trends.