Schema Markup Validator vs TechnicalSEO.com Tools (2026): which should you pick?

Pick Schema Markup Validator if

• Fits if you're a developer checking that schema.org markup is well formed
• Works for sites using structured data for engines and apps other than Google

Look elsewhere if

• Skip it if you want to know about Google rich results, which need Google's Rich Results Test
• Too light for a whole site, as it checks one URL or snippet per run
• Not for you if you want saved history or scheduled checks, as the page offers neither
• Watch out: it's hosted by the schema.org community project, not a company selling support

Pick TechnicalSEO.com Tools if

• Fits if you want a quick one-off check on a robots.txt or hreflang tag
• Works for people who already crawl with another tool and need a tester for one problem

Look elsewhere if

• Too light for ongoing audits, as there is no crawler or monitor
• Skip it if you want alerts or history, because each tester gives one result at a time
• Watch out: the site publishes no pricing or terms for the tools, so their future cost is unknown
• Not for you if you want an app or an API, as it is web only

Schema Markup Validator

• Does not tell you whether a page qualifies for Google rich results; Google's Rich Results Test does that.
• Tests one URL or one snippet per run; the page offers no site crawl, scheduling or saved history.
• Hosted by the schema.org project, a community effort founded by Google, Microsoft, Yahoo and Yandex, not a company selling support.

TechnicalSEO.com Tools

• The site publishes no pricing or plan information, so cost could not be confirmed.
• These are separate single-purpose testers, not a site-wide crawler or monitor.
• The site footer credits Merkle Inc. and the developer Max Prin.

Schema Markup Validator

Fetch a URL

Enter a page address and the validator fetches the page and checks the structured data embedded in it.

Test a code snippet

Paste markup into the editor to check it before it is published, and rerun the test after each change.

Any schema.org type

Checks syntax and compliance with schema.org standards for every type in the vocabulary, not only the ones Google uses for rich results.

No Google-specific warnings

Google describes it as validating schema.org data without Google feature-specific warnings, which its Rich Results Test covers instead.

Interface in many languages

The validator's interface can be switched between dozens of languages, including Japanese, German, Hindi, Arabic and Spanish.

TechnicalSEO.com Tools

Crawling tools

Includes a robots.txt tester, an AI bot access tester, an .htaccess tester, a sitemap generator and an RSS feed parser.

Rendering tools

A fetch and render tool and a pre-rendering tester for checking how a page is served to crawlers.

Mobile SEO

A mobile-first index tool, a mobile-friendly test and a bulk AMP validator.

International SEO

An hreflang tags tester and a locale-adaptive tester.

Local and SERP tools

A local search tool, a review link generator, a SERP simulator, a knowledge graph tool and a schema generator.

Reference docs

Short guides to the robots.txt file, hreflang and rel="canonical", plus a page on algorithm updates.

Schema Markup Validator

• Free$0

  Validates schema.org markup from a fetched URL or a pasted code snippet, with the interface in several languages.

TechnicalSEO.com Tools

Pricing could not be confirmed. See technicalseo.com.