SEO tools
Check the tags and files search engines read before you publish. Paste your HTML, robots.txt, sitemap or response headers and get a clear list of what is right and what to fix.
- 11 free tools
- No sign-up
- Runs in your browser
- Meta Tag GeneratorGenerate SEO meta tags for title, description, canonical and robots, with a Google search result preview and length warnings.Open tool
- SERP Snippet PreviewPreview how your page title, URL and meta description look in Google on desktop and mobile, with pixel-based truncation, dates and star ratings.Open tool
- Meta Title & Description CheckerCheck your meta title and description length in characters and pixels, see where Google truncates them, and test focus keyword placement. Free.Open tool
- Keyword Density CheckerFind the most frequent words and two- and three-word phrases in your content, with counts and density. Common stop words are excluded.Open tool
- Robots.txt GeneratorCreate a robots.txt file to control search engine and AI crawlers like GPTBot, ClaudeBot and Google-Extended, with sitemap lines.Open tool
- Robots.txt TesterPaste a robots.txt and a list of URLs to see which are allowed or blocked for Googlebot, Bingbot or any user agent, and which rule decides each one.Open tool
- Sitemap XML ValidatorValidate a sitemap.xml or sitemap index: XML errors, missing loc tags, relative or duplicate URLs, bad lastmod dates and the 50,000 URL limit.Open tool
- Open Graph GeneratorGenerate Open Graph and Twitter Card meta tags with a share preview, so links look right on WhatsApp, LinkedIn, Facebook and X.Open tool
- Open Graph PreviewPaste your page's HTML to preview how links look when shared on Facebook, X, LinkedIn and WhatsApp, and get a list of missing og: and twitter: tags.Open tool
- Canonical URL CheckerPaste page HTML to find its canonical URL and check for common mistakes: relative URLs, several canonicals, noindex conflicts and mismatched og:url.Open tool
- HTTP Header & Redirect CheckerPaste response headers or curl -I output to check status codes, redirect chains, caching, compression and security headers like HSTS and CSP.Open tool