Schema markup, meta tags, robots.txt, and sitemaps — the technical SEO basics, done right.
JSON-LD for 13 schema types, checked against Google's rules.
See how a URL renders as a Facebook/Twitter share card before you post it.
Validate JSON-LD from a URL or pasted code — errors, warnings and fixes.
Title, description, Open Graph & Twitter tags, with live previews.
Build a robots.txt or an XML sitemap, including images & video.
Scan a page for dead links and flag every 404.
Check a page's canonical tag for missing or chained canonicals.
Word and phrase frequency as percentages, to catch stuffing.
Build a correct hreflang tag set for multi-language sites.
Technical SEO is mostly small, structured details that are easy to get wrong by hand — a missing required schema field, a title that gets truncated in search results, a robots.txt rule that accidentally blocks the whole site. These tools build that structured data correctly the first time, validate it against what search engines and AI crawlers actually expect, and show you exactly how it'll look before it goes live.
No tool can guarantee that — search engines decide independently whether to show a rich result, and rankings depend on many factors beyond markup. What these tools guarantee is that your structured data and meta tags are correctly formed and complete, which is a prerequisite, not a guarantee.
The page you check is fetched by our server (since a browser can't read another site's HTML directly due to cross-origin restrictions), but the URL itself isn't logged or stored beyond serving your request.
Yes — each one explains what it's building and why a field matters as you fill it in, rather than assuming prior expertise.
Yes, completely free, with no sign-up and no usage limits.
