Schema-Markup-Validator
Structured data validation crawler for schema compliance
About this crawler
Schema-Markup-Validator is a web crawler identified by the regular-expression pattern Schema-Markup-Validator in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block Schema-Markup-Validator traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
No block-rate data for this crawler.
Technical details
- Name
- Schema-Markup-Validator
- Pattern
Schema-Markup-Validator- Tags
- seo
- Reference
- https://validator.schema.org/
- Added
- 2026/04/17
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; Schema-Markup-Validator; +https://validator.schema.org/)
Block this crawler
robots.txt — disallow Schema-Markup-Validator:
User-agent: Schema-Markup-Validator
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Schema-Markup-Validator [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Schema-Markup-Validator") {
return 403;
}
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