Leaving slide mode.

AI, the web, and web standards
人工智能、万维网和标准

Hidde de Vries (AB/Logius)

Hangzhou Developer Meetup
19 April 2026

AI and the web

this is for everyone words in a huge stadium

The web is open for everyone to read and write

LLMs train on the open web

screenshots of w3c wikipedia page and hidde's blog

LLMs train on the open web

same screenshots, now overlayed is the text dont use my content to train your models

LLMs put a strain on the web

screenshots of matthias blog and drew devaults post 'please stop externalising your costs directly into my face'

The web could
“poison” LLMs

screenshot of study Poisoning attacks on LLMs require a near constnat number of poisoning samples'
screenshot of study that shows fine tuning backdoor experiments, has a flow chart where a llama model is poisoned and how the content shows up in the output

Possible impacts of LLMs on the web (good)

Possible impacts of LLMs on the web (bad)

screenshot of w3c ai and the web paper note by Dominique Hazael-Massieux
screenshot of same page, chinese version

AI and web standards

At different standards organisations

W3C

  • Web and AI IG
  • Web Machine Learning WG + CG
  • CGs: AI Agent Protocol, Autonomous Agents on the Web, AI Knowledge Representation, Web AI for Time Series

IETF

  • AI Preferences WG
  • Agent to Agent BOF

ECMA

  • TC 56

CEN/CENELEC

  • JTC 21 + 5 WGs (many beyond web)

ETSI

  • TC Securing AI (SAI)
  • TC DATA

C2PA

  • Content Credentials

Agentic AI Foundation

  • MCP
  • AGENTS.MD

Web Machine Learning WG (W3C)

Web Neural Network API

github.com/webmachinelearning/webnn/blob/main/explainer.md

dedicated low-level API for neural network inference hardware acceleration

Web Machine Learning WG (W3C)

Web Neural Network API

github.com/webmachinelearning/webnn/blob/main/explainer.md

object detection, face detection, machine translation, noise suppression

note: no consensus on feature across browsers

Google's Chrome Built-in AI Team + Members of the Web Machine Learning CG (W3C)

Prompt API

github.com/webmachinelearning/prompt-api
newswebsite screenshot
same newswebsite screenshot with 'summarise article' button highlighted
arrow back from server to site, labeled 'summarised content'
same newswebsite displayed in a browser with a robot on top of the browser window, an arrow points at it and is labeled 'request to summarise, summarised content', it all stays in the browser
same newswebsite screenshot with 'summarise article' button highlighted
note: no consensus on feature across browsers

Google's Chrome Built-in AI Team +
Members of the Web Machine Learning CG (W3C)

Translation API

github.com/webmachinelearning/translation-api

AI Preferences WG (IETF)

A Vocabulary For Expressing AI Usage Preferences

ietf-wg-aipref.github.io/drafts/draft-ietf-aipref-vocab.html

Thanks!