Google Cautions Against Markdown Versions Of Websites For AI SEO

Jun 23, 2026 05:04 PM - 2 months ago 42832

Google’s John Mueller and Martin Splitt suggested be aware astir utilizing markdown arsenic a solution for optimizing for AI search, saying that it needlessly complicates thing that is fundamentally simple.

Markdown Is A Poor User Experience

The first constituent that Google’s Martin Splitt touched connected is that markdown by itself whitethorn not beryllium a bully personification experience. He referenced that HTML layouts connection the opportunity to create affirmative personification experiences pinch visually pleasing layouts and colors, thing that markdown does not support.

Martin explained:

“And I mean, the different point is besides for users, you can’t conscionable people a group of Markdown documents because A, we for illustration colors and images and worldly to benignant of for illustration travel successful a bully layout and Markdown by definition, unless you put a layout connected it, doesn’t. And Markdown doesn’t support layouts directly.

So you would person to person immoderate benignant of system to… You’re fundamentally recreating the browser. You’re recreating HTML parsing successful the end. So mightiness arsenic good usage HTML parsing because arsenic you say, that has been around, that has been tried and tested for decades astatine this point.”

Markdown Creates Twice The Work

The different constituent Martin made was that utilizing markdown for LLMs while besides creating a abstracted HTML type for users doubles the magnitude of activity and complicates the enactment of web publishing, which is the other of what SEOs and publishers should beryllium doing: simplifying the enactment of web publishing.

Martin continued:

“The different point is you would copy things if you were to acknowledge, like, users don’t want Markdown. They want the full-fledged website. And past I create a type conscionable for LLMs, past you’re benignant of making doubly the activity aliases having doubly the work, no?”

John Mueller agreed and expanded connected the taxable by saying that he understood wherever group are coming from successful position of simplifying the process of publishing contented because immoderate HTML pages tin really beryllium poorly presented.

Mueller added:

“Yeah, I deliberation that’s ever unspeakable connected the web. And I understand wherever these ideas travel from successful that a batch of web pages are conscionable unspeakable from a structural constituent of position and difficult to use. And it’s tempting to say, well, users tin spot this complex, weird page, and automated systems, they should person it easy. You should conscionable springiness them the accusation that they’re looking for.”

Something that they didn’t mention but is implied successful what they were talking astir is that humans evolved to chiefly prioritize ocular information; it’s the ascendant measurement humans comprehend the world.

According to scientists:

“…half of the quality encephalon is devoted straight aliases indirectly to vision…”

That intends communicating pinch images and charismatic layouts tin beryllium beneficial for getting a connection across.

Parallel Versions Of Content

Lastly, some Mueller and Splitt cautioned against having parallel versions of contented because it needlessly complicates the enactment of publishing. Moreover, because an AI won’t email you to show you that the markdown type of a web page is surgery (the measurement a personification mightiness if your HTML is broken), it’s imaginable for the machine-facing type of the contented to linger successful a surgery authorities for weeks aliases longer without the tract proprietor catching on.

Mueller began this portion of the discussion:

“Fundamentally, arsenic soon arsenic you person these parallel versions of your content, past everything becomes truthful overmuch much complex. You person to support those aggregate versions. You person to make judge that thing breaks connected a type that a personification doesn’t see, because users mightiness kick to you if your page doesn’t load properly. But if the LLM type of a page doesn’t load properly, past nary personification is going to show you that thing is broken.

And a batch of these automated systems, mightiness not moreover admit that thing is surgery because they see, it’s like, there’s immoderate matter here, must beryllium what they want america to index.”

Martin Splitt agreed:

“Yeah, I deliberation we learned that instruction pinch move rendering, which was a bully stopgap solution for a while. But we recovered retired successful believe it oftentimes caused much problems and was really difficult to debug because of this duality of the 2 different abstracted versions. Yeah, that’s not great.”

Takeaways

Google’s John Mueller and Martin Splitt cautioned against utilizing markdown arsenic a abstracted AI-optimized type of a website, making the constituent that publishers are amended disconnected improving their existing HTML pages alternatively than building parallel AI-specific versions of content.

  • Google says markdown for AI SEO whitethorn not beryllium optimal because it whitethorn lead to complications related to publishing parallel sets of content, adding complexity without concomitant benefits.
  • Parallel contented improvement is difficult to debug because failures successful AI-facing versions tin spell unnoticed for agelong periods, dissimilar surgery user-facing pages.
  • Markdown contented for some users and AI whitethorn not coming the champion acquisition for users. Although they didn’t mention it, the personification acquisition is simply a existent ranking-related factor, some straight and indirectly.
  • HTML provides important advantages for quality usability done layout, navigation, colors, and images, which thief users devour accusation much efficaciously than earthy markdown.
  • Google compares parallel contented publishing to move rendering, suggesting that past attempts to support abstracted machine-optimized versions often created much problems than they solved.

Listen to hunt disconnected the grounds here, starting astatine astir the 14 infinitesimal mark:

Featured Image by Shutterstock/Krakenimages.com

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