Free Website Tools
Check individual aspects of your website – no registration required, instant results.
Schema.org Validator
Validates JSON-LD and Microdata. Shows all Schema.org types, properties and potential rich results errors.
Open tool →Meta Tag Checker
Checks title, meta description and Open Graph tags. Shows how your page appears in Google and social media.
Open tool →robots.txt Generator
Creates a robots.txt with targeted AI bot blocking for GPTBot, ClaudeBot and 20+ more crawlers.
Open tool →robots.txt Validator
Checks syntax, detects blocked AI bots (GPTBot, ClaudeBot) and validates the file structure.
Open tool →XML Sitemap Validator
Validates XML sitemaps including sitemap index. Detects errors, duplicate URLs and Google compliance issues.
Open tool →HSTS Check
Checks the HSTS header for max-age, includeSubDomains and preload, and verifies the HTTP→HTTPS redirect.
Open tool →