Single-purpose technical SEO checks. No signup. Each one looks at one URL or one file and tells you exactly what's wrong and why.
Type or paste a title and meta description and see, as you type, whether Google or Bing will cut them off, measured in pixels rather than characters.
Test whether a URL is allowed or blocked for Googlebot, Bingbot, GPTBot or any user agent, and see the exact rule that decided it.
Find a site's sitemap from its domain, then validate the XML, the URLs in it, lastmod dates and sitemap index files.
Paste JSON-LD or enter a URL. Get JSON syntax errors with line numbers and a check of the properties Google requires for rich results.
Validate a page's hreflang annotations, then fetch each alternate to confirm it links back, returns 200 and isn't canonicalized elsewhere.
See which URL a page declares as canonical, in HTML or HTTP headers, and whether that target actually resolves to an indexable page.
One-page check of title and description truncation, canonical, noindex, Open Graph tags and basic accessibility signals.
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