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Your AEO score measures whether AI search engines (ChatGPT, Claude, Perplexity, Gemini) can actually read your site and cite it in answers. Two-thirds of websites are invisible to them. Web Hypertext Application Technology Working Group (WHATWG) just got measured.
4/10 means Web Hypertext Application Technology Working Group (WHATWG) is borderline visible. AI bots can crawl your site but your structured-data signals are thin. You are at risk of being skipped when buyers ask AI for a recommendation.
HTML Living Standard See the other Living Standards developed at the WHATWG Blog FAQ GitHub Policies Participate Get started with contributing to the WHATWG Chat Talk to other members of the WHATWG community X (Twitter) Keep track of spec changes and other announcements HTML checker Validate your HTML documents Queries can be directed either as a new meta issue or as an email to the Steering Group
Category: Technology
whatwg.org1
Structured Data
6
Content Structure
4
Entity Clarity
3
E-E-A-T Signals
5
Technical AEO
3
AI Discoverability
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Exact fixes: robots.txt, schema, llms.txt
AI bot crawls from ChatGPT, Claude, Perplexity, Gemini
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Scored by Engagemii on May 22, 2026. Methodology: engagemii.com/aeo/methodology
Source URL: https://engagemii.com/aeo/brands/whatwg-org
Cite this score: Engagemii (2026). "AEO Score for Web Hypertext Application Technology Working Group (WHATWG)." Retrieved from https://engagemii.com/aeo/brands/whatwg-org
Licensed under CC BY 4.0. You may reuse this data with attribution: a visible link to engagemii.com.
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