Google has removed a whole section from its JavaScript SEO documentation because it was outdated and Google says loading content with JavaScript does not make it hard for Google Search.
Google is testing Reading Mode for some PDFs in Chrome Canary. The browser shows a Reading Mode button when a document contains enough readable text.
For years, mathematical content on the web has been made accessible through MathML. In contrast, math in PDF files was typically reduced to unstructured alternative text—insufficient for braille math ...