RESONEO's analysis of 1,200 ChatGPT answers reveals three distinct retrieval layers—OpenAI's own index (labrador), cached Google results, and live-fetched pages—each with different staleness and citation rules.

A controlled experiment published in Search Engine Land found that AI search crawlers and Google's indexing bot fail to follow JavaScript-injected links, making JavaScript-dependent navigation a critical visibility problem across AI search and organic results.

A landscaping-focused agency tested whether adding LocalBusiness schema markup boosts rankings in a controlled 10-week study across 29 clients and multiple search engines.

An audit of 71 Canadian businesses found that AI search systems can verify only 16% of business identity on average, due to technical and structural gaps most businesses can fix.

SEOFOMO News benchmarked 1,000 top websites on AI-agent readiness and found most are unprepared, with an average score of 54/100 and over a third falling below 50.

A survey of 131 SEO professionals by Zyppy ranks relevance and search intent first, backlinks second, and content quality third among Google's perceived ranking factors.