Low impact · weight 4 · worth up to 0.8 points of the total score
GPTBot, ClaudeBot and PerplexityBot download a page's JavaScript but do not run it, so a page that builds its text in the browser is blank to them. Google does run JavaScript, but later and not always. This counts the words in the HTML as it arrives, before any script runs.
Render the page's main content on the server: server-side rendering or static generation in Next.js, Nuxt, SvelteKit or Angular, or prerendering for a single-page app.
Check a page for this, and the other 70 checks at once
Heading levels are not skipped
Screen readers and crawlers read headings as an outline. Jumping from H2 straight to H4 implies a missing level, so the outline reports a section that does not exist.
Page links to the rest of the site
Internal links are how crawlers reach the rest of the site and how ranking signal flows between pages. A page with none is a dead end that hoards whatever authority it earns.
Structured data parses as JSON
A JSON-LD block with a trailing comma or an unescaped quote is discarded whole. The rich result it was meant to earn silently never appears, and nothing in the page looks broken.
Local business markup is complete
For a business people visit or call, LocalBusiness markup with a name, an address and a phone number is how Google connects the page to its map listing and local results. A page that lists a phone number but does not say whose it is leaves that to guesswork.
