Web & SEO
Check SEO tags, robots.txt, sitemaps and HTML structure — tools for building and running websites.
4 tools
HTML Inspector
Paste a page’s HTML to review SEO and accessibility basics at a glance: heading structure, meta tags, Open Graph, image alt text, links and structured data — with a preview of how it may look in search and on social media.
robots.txt Tester
Paste a robots.txt to see instantly whether a URL is allowed or blocked for Googlebot or AI crawlers, and which line decided it. Misspellings and directives Google ignores are flagged too.
XML Sitemap Generator & Validator
Paste a list of URLs to create a correctly written sitemap.xml, or paste an existing sitemap to find the errors that stop Google from reading it — with line numbers.
Structured Data / JSON-LD Studio
Build JSON-LD for 13 common types with forms that separate required from recommended fields, then copy it. Paste JSON-LD or HTML to extract every script, @graph and array and see problems from the exact line of a syntax error to missing Google rich result requirements. It is not Google’s official tool.