ai citation sources 2026
The 50 Websites AI Search Actually Cites in 2026
6 September 202610 min read
GEO & AI Search Intelligence
The AI Search Blog
Tactical guides and case studies on GEO, LLM citation optimisation, and building AI visibility for your business.
robots.txt gptbot block
Your robots.txt GPTBot Block Probably Isn't Working
HasData tested 592 sites that disallow GPTBot in robots.txt against live requests. 234 of them (39.5%) still served GPTBot anyway. A declared block and an enforced one are not the same thing.
6 September 20269 min read
schema markup AI citations
Schema markup doesn't move AI citations: what Ahrefs' controlled study found
A controlled Ahrefs experiment tracking 1,885 pages found close to zero causal effect from adding JSON-LD schema on AI citation rates, contradicting the correlational stat much of the GEO industry, including us, built advice on.
6 September 20268 min read
ai citation overlap
AI Citation Overlap Across Engines: 79.6% Is Exclusive to One
A 22.7-million-citation Wellows study found Perplexity misses 89.1% of ChatGPT's sources on identical questions, and engines converge on the same brand 4.5x more often than the same page.
6 September 20269 min read
chatgpt product feed
ChatGPT Product Feed Requirements: The 9 Fields OpenAI Requires
OpenAI's official product feed spec for ChatGPT Shopping requires 9 fields and enforces validation rules, like GTIN check digits and strict sale-price logic, that silently reject listings most guides never mention.
6 September 20269 min read
bing webmaster tools ai performance
Bing Webmaster Tools AI Performance Report: Citation Share Explained
Microsoft's June 2026 update added Intents, Topics, Citation Share, and Compare to the Bing Webmaster Tools AI Performance report, here's what each metric shows and how it stacks up against Google's Search Console AI report.
6 September 20268 min read
multilingual GEO
Multilingual GEO: Why Most AI Citation Strategies Miss Half Their Audience
OpenAI's own Signals data shows more than half of active ChatGPT users now predominantly use a language other than English. Here is what that means for a GEO strategy built and measured entirely in English, and what actually changes once you take other languages seriously.
6 September 20268 min read
chatgpt vs gemini citations
ChatGPT vs Gemini: Why Citation Slots Aren't Equal (2026 Data)
Semrush's 2026 AI Visibility Index found ChatGPT cites 15 sources per response versus Gemini's 3, and on Gemini, mentions and citations overlap as low as 30%. Here's what that means for where you spend GEO effort.
6 September 20269 min read
cloudflare ai crawler block
Cloudflare's AI Crawler Rules Change September 15: What to Check First
Cloudflare's new AI-crawler-access defaults take effect September 15, 2026. Here's the accidental-self-block risk that matters most, plus a decision framework by site type.
5 September 20268 min read
