AI Search

Victorious AI Search Study Puts Domain Authority Correlation at r=0.017

Victorious tested 177 brands across eight AI search engines in Q1 2026 and recorded 107,011 responses. Only 18 of those brands registered any AI mentions, meaning 89.8% drew zero. The correlation between Authority Score and citation rate was r=0.017, statistically indistinguishable from random. Domain authority is

Blueprint-style diagram of ChatGPT's web.run tool with fan-out query branches and a citation gauge dropping from 19 domains to 15 per answer.

ChatGPT 5.4 Cut Per-Answer Citations From 19 Domains to 15

OpenAI switched ChatGPT Search to GPT-5.4 on March 4, 2026, replacing the text-command web.run tool with a JSON-based interface. RESONEO co-founder Olivier de Segonzac tracked 400 daily prompts for 14 weeks and found average unique domains cited per response dropped from 19 to 15, a 21% decline. AEO

Dark data viz of a GA4 dashboard showing a tiny AI Assistant traffic bar next to a massive Direct traffic bar, with ChatGPT, Gemini and Claude logos as recognized referrers.

GA4 Named Its AI Assistants Channel Around the 70.6% It Can't Actually See

Google Analytics rolled out a new AI Assistants channel on May 13, 2026, automatically tagging traffic from recognized chatbots like ChatGPT, Gemini, and Claude with the medium ai-assistant and grouping it in default reports. The channel only captures sessions that arrive with a recognized referrer header. ChatGPT's Atlas

Omniscient Found 48% of AI Brand Citations Live Off Your Site

Omniscient Digital analyzed 23,387 citations across 240 branded prompts and found 48% came from earned media, 30% from commercial brand content, and just 23% from owned channels. When ChatGPT, Perplexity, or Claude name a brand, more than three-quarters of the supporting evidence sits on sites the brand doesn'

Blueprint diagram of the AI delegation boundary: three concentric mode rings labeled search, assistive, agent, with a dotted boundary line and seven factor icons.

The Delegation Boundary Is Why Schema-Heavy AEO Audits Don't Move Citations

Jason Barnard published a framework on Search Engine Land naming the three signals AI engines weight when deciding which brand to recommend: accuracy, positive sentiment, and consistency across engines. The implication is narrower than the AEO industry has been selling. Schema markup and entity SEO are table stakes; the signal

Dark GA4 dashboard with oversized Direct traffic slice and a stripped referrer header line above a conversion rate comparison chart

Last-Click Buries the 10.21% Converter. AI Strips 70.6% of Its Referrers.

Dan Taylor argued in MarTech on May 12 that last-click attribution rewards the wrong work in an AI-first world. The number that makes his case concrete is the one his piece left out: 70.6% of AI-driven sessions arrive with no referrer header, which dumps the highest-converting traffic on the

Wikipedia Drives 13% of ChatGPT Citations (Most Brand Audits Skip It)

Wikipedia supplies roughly 13.15% of ChatGPT citations in the US, and 26% to 48% of the top-10 citation share, according to the 5W AI Platform Citation Source Index 2026. A single outdated paragraph about a brand can then propagate into AI Overviews, Perplexity, and Claude for years. Most reputation