Free SEO tools
No login, no install — these run right in your browser. Part of CrawlX, the cloud SEO crawler that ships the fix as a pull request.
Robots.txt Tester
Paste your robots.txt and a URL to see instantly whether Googlebot (or any user-agent) is allowed to crawl it — with the exact rule that decides.
Open toolSchema Markup Validator
Paste your JSON-LD (or a whole page's HTML) to see which schema.org types you've declared and which required or recommended fields are missing.
Open toolSERP Snippet Preview
Type a title, description, and URL to see how your page will look in Google's search results on desktop and mobile — before it's truncated.
Open toolMeta Tag Checker
Paste a page's HTML to see its title, meta description, canonical, and Open Graph + Twitter card tags — with warnings for anything missing or too long.
Open toolHreflang Checker
Paste your hreflang tags (or a page's HTML) to validate the language-region codes, catch invalid values, duplicates, and a missing x-default.
Open toolHeading Structure Checker
Paste a page's HTML to see its H1-H6 outline and catch a missing H1, multiple H1s, or skipped heading levels.
Open tool