SEO Inspector

Q: Does the SEO Inspector rewrite titles or descriptions?

No. It is report-only and shows detected signals, lengths, and common gaps without generating fixes or changing your content.

Q: Why does the URL tab use a backend proxy?

The site is statically exported, and browsers enforce CORS for cross-origin HTML fetches. The proxy fetches public URLs and returns bounded HTML for analysis.

Q: When should I use Paste HTML?

Use it for localhost, private staging, authenticated pages, or when you want to inspect rendered HTML copied from your browser.

Q: Does URL mode see JavaScript-rendered metadata?

Not yet. URL mode analyzes the pre-JS server response, so metadata or JSON-LD injected by an SPA after hydration may be missing from the report.

Fetch a public page or paste HTML to produce a report-only on-page SEO snapshot: metadata, canonical and robots, social tags, headings, images, links, hreflang, word count, and structured data detected in JSON-LD blocks.

URL fetches use the DevTools proxy

Static browser pages cannot fetch arbitrary cross-origin HTML directly, so public URL checks go through the backend proxy. Paste HTML for localhost, private staging, or authenticated pages.

Report-only SEO inspection

This tool reports page signals and common gaps. It does not suggest rewrites, generate copy, or auto-improve the page.

URL to inspect

Fetch a URL or paste HTML to see the SEO report.

SPA and rendering caveat

URL fetches inspect the HTML returned by the server before client-side JavaScript runs. If a single-page app injects metadata, headings, links, or JSON-LD after hydration, paste the rendered HTML until JavaScript rendering support is available.

On-page SEO inspection examples

Read the page as a set of observable signals: document metadata, social previews, headings, links, images, language alternates, and structured data.

Metadata snapshot

<title>Example product page</title>
<meta name="description" content="A concise page summary...">

The inspector reports presence, lengths, and common metadata gaps without rewriting the content.

Structured data in HTML

<script type="application/ld+json">{"@type":"Product"}</script>

The JSON-LD block is included in the structured data section of the SEO report.

Common mistakes

Assuming URL mode sees JavaScript-rendered tags that are injected after hydration.
Treating length ranges as absolute ranking rules instead of practical review signals.
Expecting the report to generate fixes or rewrite page copy.

SEO Inspector

On-page SEO inspection examples

Common mistakes

FAQ

Does the SEO Inspector rewrite titles or descriptions?

Why does the URL tab use a backend proxy?

When should I use Paste HTML?

Does URL mode see JavaScript-rendered metadata?

See also