Schema & Validation Tools
Validate structured data, check hreflang tags, and crawl your site for technical issues. Get instant feedback with actionable recommendations.
About Schema Checker & SEO Tools
Validate structured data, check international SEO settings, and quickly audit your site with specialized technical tools
This suite of specialized tools helps you validate schema markup, verify hreflang implementation, and run quick site checks to ensure your website meets technical standards for search engines.
Schema Lint
Validate JSON-LD, Microdata, and RDFa structured data for rich results eligibility and proper syntax
Hreflang Checker
Verify language and region tags for international sites, check reciprocity and syntax errors
Mini Crawl
Quick site scan to detect broken links, status code issues, and basic crawlability problems
Schema Lint (Structured Data Validator)
Why validate schema markup?
Structured data helps search engines understand your content and can enable rich results like star ratings, breadcrumbs, FAQs, and product information in search listings.
What it validates:
- JSON-LD (recommended format)
- Microdata (embedded in HTML)
- RDFa (semantic markup)
What it checks:
- Required and recommended properties
- Schema.org vocabulary compliance
- Syntax errors and formatting issues
Article Schema
Blog posts, news, guides
Product Schema
E-commerce, pricing, reviews
FAQ Schema
Questions & answers
Hreflang Checker (International SEO)
Hreflang tags tell search engines which language version to show to users in different countries and regions.
What the checker validates:
- Syntax: Correct language and region codes (e.g., en-US, fr-FR)
- Reciprocity: Each page must link back to alternates
- Self-reference: Pages should include themselves
- x-default: Fallback for unmatched languages
- Conflicts: Duplicate or contradictory tags
- Coverage: All language versions properly linked
Mini Crawl (Quick Site Check)
A lightweight, fast scan that checks your site's basic health and internal link structure.
- Broken internal links
- 404 and 500 errors
- Redirect chains
- Orphaned pages
- Fast results (under 1 minute)
- No setup required
- Focus on critical issues
- Good for quick checks
When to Use Each Tool
| Tool | Best For | Frequency |
|---|---|---|
| Schema Lint | After adding structured data, before rich results testing | After schema updates or when debugging rich results |
| Hreflang Checker | Multilingual sites, international targeting | After adding new language versions or updating tags |
| Mini Crawl | Quick health checks, finding broken links | Weekly or before major launches |
Who These Tools Are For
Developers
Validate technical implementation
Marketers
Optimize for rich results
International Sites
Verify hreflang setup
Agencies
Client site validation
Ready to Validate Your Site?
Use the tools above to check your schema, hreflang, and site health