Free website analysis tools
Choose a check. No signup required.
Advertising & product feeds
Sharing & accessibility
Technical SEO
Schema markup validator
Inspect JSON-LD entities, source lines and suggested fixes.
Public page URL or pasted JSON-LDCore Web Vitals checker
Review real-user performance from the Chrome UX Report.
Page URL or domainRobots.txt validator
Check crawler rules and find unintended access restrictions.
Website URLBulk redirect checker
Trace redirects, inspect headers and validate caching for up to 1,000 URLs.
Desktop/mobile comparison · CSV exportHTTP status code checker
Check HTTP response codes, headers and cache validators for up to 1,000 URLs.
Country selection · Desktop/mobile comparison · CSV exportSource and rendered HTML preview
See what JavaScript changes in your page content and metadata.
Public page URLPublic page audit
Investigate indexability, metadata, links and structured data.
Public page URLWebsite crawler
Find technical issues across pages within public crawl limits.
Website URLAI visibility & resources
AI visibility audit
Check crawler access, entity signals and content readiness for AI discovery.
Website URLAI mention checker
See whether Perplexity mentions your brand in an answer and its citations.
Brand or website · Customer questionWebMCP validator
Inspect experimental WebMCP signals and exposed tool definitions.
Public page URLLLMS.txt validator
Check the structure and links in your experimental llms.txt file.
Website URLLLMS.txt generator
Build a draft llms.txt from your sitemap for review before publishing.
Website URL