About
Who built it
Matthew Bertram built the Stack. EWR Digital, the Houston agency he owns and runs as CEO, delivers it through its AI visibility services. He hosts The Best SEO Podcast, whose site publishes the measurement research behind this one, and he set the method out at length in a book, which is where the five tiers come from.
The book
LLM Visibility
A Decision-Grade System For Winning AI-Mediated Discovery. Matthew Bertram, 2026.
The tier names come from the book, along with each tier's subtitle, such as Trademark Anchors for Foundation. The work under each tier is how EWR Digital delivers it. The book's own four-line version of the method:
Build your anchors. Seed your mentions. Structure your proof. Run the loop
The mark
A registered trademark
LLM Visibility Stack® is a registered U.S. trademark of Matthew Bertram, Reg. No. 8202813, on the Principal Register since April 7, 2026. The record is public in the USPTO's trademark status system. How the name is written
For the dated record of the LLM Visibility name, see the origin of LLM Visibility on matthewbertram.com.
The research
Where the measurement is published
The measurement research behind this site is published on The Best SEO Podcast's site, with its dates, its engines and its limits. Read One AI check against twelve
How it becomes a monthly number: the measurement, step by step.