Web Spec Reader

Specs are usually large single-page HTML documents. WebFetch them in sections rather than expecting the full body in one response.

WHATWG (CC BY 4.0)

Examples: html.spec.whatwg.org, url.spec.whatwg.org, dom.spec.whatwg.org.

The HTML spec has a multipage variant that is much friendlier to fetch:

https://html.spec.whatwg.org/multipage/{section}.html

Use the table of contents at https://html.spec.whatwg.org/multipage/ to find the right section URL, then WebFetch that page.

W3C (w3.org/TR/{shortname})

Read with WebFetch, optionally appending an anchor: