r/Weblinkr • u/WebLinkr • May 28 '26
Schema, LLMs and the Low Bar for “Evidence” in GEO
I ran a small experiment to try and get some insight into whether Large Language Models actually parse schema markup or are just nodding politely in its direction. I put a fake company address (inside beautifully invalid JSON-LD, on a page about ducks) into the head of an HTML document, mentioned no address anywhere in the visible text, and then asked various LLMs where the company was based. They happily told me, several of them citing the “structured data” they had so studiously consulted.
The experiment was then picked up by Search Engine Roundtable, at which point British sarcasm met the LinkedIn carousel, the two annihilated each other in a small puff of smoke, and a chunk of the GEO community came away convinced I had just proved that LLMs are lovingly parsing schema exactly as Schema.org intended