study
We studied llms.txt across 137K domains
28% of domains had an llms.txt file, and 97% of those files got zero requests in May 2026. The best data yet on whether it matters.
Resources
The best of what's out there
Guides, studies, tools and newsletters worth your time, each with a one-line reason why. We add to this every week.
docs
AI features and your website
Google's own guidance on AI Overviews and AI Mode. Short version: the same fundamentals apply, and no special AI files or markup are required.
guide
The AI Search Manual
The deepest free reference on how AI search works, in 24 chapters with a changelog. Dense and enterprise-leaning, so pair it with our platform playbooks.
study
AI Overviews impact on Google CTR (2026 update)
53 brands, 2.43B impressions. Being cited inside an AI Overview roughly doubles your click-through compared with not being cited.
newsletter
SEOFOMO newsletter
The best curated weekly roundup for SEO professionals, with strong AI search coverage. More technical than our digest, and worth both.
study
Why your site is invisible to ChatGPT and Claude
AI crawlers don't execute JavaScript, so client-rendered pages can look empty to them. Required reading for anyone running a headless or app-style site.
tool
Free AI visibility checker
A free look at how often your brand shows up in AI answers. Pair it with a manual prompt list for anything you'll report on.
study
Does schema help you get cited by AI?
Adding JSON-LD to 1,885 pages produced no meaningful lift in AI citations. Keep schema for rich results and entity clarity, not as an AI hack.
guide
Preparing retail for agentic AI
Survey data on how shoppers use AI (64% have used GenAI to shop) and why machine-readable catalogs and live inventory matter. Enterprise retail focus.
tool
How to measure AI search demand
An API that estimates AI search volume per keyword with 12 months of trend. A modeled index, not real chatbot logs, but useful for choosing topics.
guide
OpenAI shifts checkout plans in its agentic commerce strategy
Why OpenAI scaled back Instant Checkout and moved purchases to merchant apps. A useful reality check on agentic commerce hype.
docs
Drupal llms.txt and AEO module coverage
News on the new Drupal modules for llms.txt and answer engine optimization. A starting point while we test them properly.
tool
AEO Grader
A free check of how ChatGPT, Perplexity and Gemini see your brand, scored out of 100. Good for a quick baseline; the full report needs an email.
docs
Overview of OpenAI crawlers
The official list of OpenAI's user agents (GPTBot, OAI-SearchBot, ChatGPT-User) and what each one does. Use it to write robots.txt rules on purpose.
study
The AI confidence trap: 2026 AI search survey
600+ marketers: 84% feel confident about AI search, 51% doubt their strategy, and 71% don't track AI share of voice. A useful mirror.
study
AI traffic research study
AI tools send about 0.32% of all website traffic, up 16x since 2024, and ChatGPT sends about three quarters of it. Small but growing fast.
guide
Google's new AI search guide calls AEO and GEO "still SEO"
A good summary of Google's May 2026 guidance: original content, indexability, Merchant Center and Business Profile matter; agentic features are optional.
study
Zero-click searches in 2026
68% of US Google searches ended without a click in early 2026. Useful context when traffic drops but rankings don't.
docs
AI commerce at scale
Shopify's January 2026 announcement of Agentic Storefronts, Shopify Catalog for all brands and the Universal Commerce Protocol with Google.
study
AEO vs GEO
Search demand for the competing acronyms. GEO is ahead, and both flattened in early 2026. Settles the naming argument with data.
docs
Enable llms.txt in Yoast SEO for Shopify
How to switch on llms.txt generation if you already run Yoast on Shopify. Free to do, so fine, but read the Ahrefs study before expecting results.
guide
Structured data with Schema.org: the ultimate guide
A thorough, well-organized schema primer with code samples and a priority list of types. WordPress-flavored and promotes Yoast, but solid.
Nothing here yet for that filter.