AI Overviews are expanding across commercial intent search [Study]
Google’s move to extend AI Overviews into a wider variety of SERPs is disrupting not only informational searches, but also searches with commercial intent and advertising value.
Original Research & Studies
Stay on top of the SEO industry with original research and studies. Here are the latest data-backed resources.
Only 25% of cited sources overlap between ChatGPT's different reasoning modes [Study]
Most AI visibility strategies treat ChatGPT as a single system. Our research found that‘s a mistake. Thinking mode and Instant mode cite different sources, favor different content, and can recommend different brands for the exact same prompt. Here‘s what marketers need to know.
ChatGPT traffic analysis: Insights from 17 months of clickstream data
Discover how ChatGPT is reshaping search habits and web traffic patterns. Analysis of clickstream records reveals changing user behaviors and referral trends in AI-driven search.
We Analyzed 89K LinkedIn URLs Cited in AI Search: Here's What Drives Visibility
What makes LinkedIn content appear in AI answers? Our analysis of 89K cited URLs reveals what AI models trust—and how brands can win visibility.
We Analyzed 8,000 Content Marketing Job Listings: The Shift from Writing to Ownership
We analyzed 8,000 US content marketing job listings to show how roles shift from writing to owning SEO, AI discovery, storytelling, and impact.
SERPs with Ads + AI Overviews Grew by Over 394% in 2025
SERPs keep changing to incorporate both ads and AI Overviews. Read what it means for you.
The Most-Cited Domains in AI: A 3-Month Study
We studied the domains most frequently cited by AI tools and found a significant drop for Reddit and Wikipedia. See the research.
Do Backlinks Still Matter in AI Search? Insights from 1,000 Domains [Study]
We analyzed 1,000 domains to uncover how backlinks influence AI-generated answers. The verdict: quality and authority drive visibility in AI search.
We Analyzed 26K Quora URLs Cited in Google AI Mode: Here’s What Works
We analyzed 26,000 Quora URLs cited in Google AI Mode and partnered with Quora’s team to uncover the patterns behind content that surfaces in AI answers.
ChatGPT Is Not Replacing Google—It’s Expanding Search [Study]
New research shows ChatGPT is not replacing Google Search—usage remains steady post-ChatGPT adoption.