What does "indexable" mean here?

Whether the page allows itself to be indexed. We read both the robots meta tag and the X-Robots-Tag response header, because a page can carry one without the other. A stray noindex returns 200 to every uptime monitor and looks perfect in a browser, so it usually goes unnoticed until traffic disappears.

Why does the title length matter?

Google truncates titles at roughly 60 characters and meta descriptions at roughly 160. Longer is not penalised, but the part past the cut is not shown, so a title that carries its meaning at the end loses it in the result.

Does this crawl my whole site?

No. It reads one page and reports only what that page supports — including the internal links on it. Page depth and orphan detection need a crawl across many pages, which we run only for domains whose ownership has been verified.

Is one H1 per page still a rule?

HTML5 permits several, and search engines cope. But one H1 is still the clearest signal of what a page is about, so we flag zero as a failure and more than one as worth a look.

On-Page SEO Checker

Title, meta description, H1, canonical and indexability for any page.

Call this tool from the API

Get the same result via REST. Create a free API key at /account/api-keys — 100 calls/day on the free tier; 50k on Pro.

# curl — JSON response (default)
curl https://internettimes.com:80/api/v1/on-page-checker/example.com \
  -H "Authorization: Bearer YOUR_API_KEY"

# Markdown response — ingest-friendly for agents
curl "https://internettimes.com:80/api/v1/on-page-checker/example.com?format=md" \
  -H "Authorization: Bearer YOUR_API_KEY"

On-Page SEO Checker

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