{"id":1274,"date":"2026-03-13T12:08:21","date_gmt":"2026-03-13T12:08:21","guid":{"rendered":"https:\/\/www.mindbees.com\/blog\/?p=1274"},"modified":"2026-03-13T14:10:42","modified_gmt":"2026-03-13T14:10:42","slug":"schema-myth-llms-json-ld-seo","status":"publish","type":"post","link":"https:\/\/www.mindbees.com\/blog\/schema-myth-llms-json-ld-seo\/","title":{"rendered":"The Duck That Quacked the Schema Myth: Why LLMs Aren’t Reading Your JSON-LD Like You Think"},"content":{"rendered":"\n

Picture this: a plucky little t-shirt company called DUCK YEA T-SHIRTS<\/strong>, run by aggressive-waddling mallards from the fictional land of South Pondshire. No visible address on the page – just a sneaky, completely made-up JSON-LD block hidden in the HTML source. Yet when you ask ChatGPT or Perplexity, \u201cWhat’s the address of this company?\u201d they happily spit out:<\/p>\n\n\n\n

77 The Muddy Bank, South Pondshire, DK99 YEA, United Queendom.<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

(Yes, that’s the kind of vibe we’re working with here – aggressive ducks in t-shirts. The experiment even came with adorable duck doodles.)<\/p>\n\n\n\n

This cheeky test, popularized in early 2026 by SEO veteran Mark Williams-Cook<\/strong> (with original credit to Richard Barrett), became a viral wake-up call across LinkedIn, podcasts, Reddit, and SEO forums. It exposed a hard truth many “AI SEO” or “GEO” gurus didn’t want to hear: most current LLM-based AI systems do not parse structured data the way search engines like Google do.<\/strong> They just… read the text. All of it. Including your fancy <script type=”application\/ld+json”><\/mark> tags.<\/p>\n\n\n\n

The Setup: A Pond-Full of Fake Schema<\/h2>\n\n\n\n

Mark created a simple webpage for the nonexistent company. Visible content? Zero mention of any address. But tucked away in the code was this glorious nonsense:<\/p>\n\n\n\n

JSON<\/p>\n\n\n\n

\n\n \n
\n duck-schema.json<\/span>\n