Schema Markup Validator
Extract and validate JSON-LD structured data from a public webpage.
Validate SchemaWebsite Tools
Validate sitemap XML, URL limits and public URL entries. Clear limitations are shown and sensitive credentials are never sent to the visitor browser.
The public URL, domain, IP address, record type, or audit option requested by the checker.
Choose only the settings that apply to the result you need; leave optional controls unchanged when you are unsure.
Start the task and wait for the interface to return its result or a clear setup message.
Results can vary by location, cache, DNS propagation and temporary server conditions. Confirm important findings with the relevant host or service.
Extract and validate JSON-LD structured data from a public webpage.
Validate SchemaMeasure HTML size and count common page resources.
Check Page SizeMeasure time to first byte and total initial response time.
Measure TTFBReview MX, SPF and DMARC setup without sending an email.
Check DeliverabilityCheck whether a root ads.txt file is reachable and review its authorized seller records.
Check Ads.txtThe public URL, domain, IP address, record type, or audit option requested by the checker. Start with a representative input and use only the options needed for your intended result.
A point-in-time observation from the public target and the checks available on this page. A clean automated check does not replace testing in the system where the data or code will be used.
Results can vary by location, cache, DNS propagation and temporary server conditions. Confirm important findings with the relevant host or service.
The checker uses the public target you enter to make a diagnostic request. Do not place credentials or private access tokens in a URL.
The page can be used without creating a visitor account. Your browser or device may limit unusually large files or demanding media jobs.
XML Sitemap Validator brings the required input, options and result into one focused workflow. Validate sitemap XML, URL limits and public URL entries. The result changes when the source data or selected options change, so it is easy to run a second comparison.
The public URL, domain, IP address, record type, or audit option requested by the checker.
A point-in-time observation from the public target and the checks available on this page.
It can help when you need to run a fresh diagnostic after a hosting, DNS, certificate, redirect, content or performance change. Start with a representative input, inspect the first result, then adjust one setting at a time if you need a different outcome.
The checker uses the public target you enter to make a diagnostic request. Do not place credentials or private access tokens in a URL.