What you need to know about structured data
JSON-LD is Google's recommended format for structured data — it's added as a standalone <script type="application/ld+json"> block in the <head> without touching your visible markup. The older Microdata and RDFa formats are still supported, but they require attributes embedded directly in your HTML tags, making them harder to maintain; Google favors JSON-LD in most cases.
Adding valid structured data can make your page eligible for rich results in Google Search — FAQ dropdowns, product price/availability snippets, and more. This is never a guarantee, though: Google's own algorithms decide whether, when and how any rich result is displayed. Structured data can improve visibility, but it doesn't directly boost rankings.
Before deploying, always validate your output with Google's Rich Results Test — it catches both syntax errors and missing required fields.
The most important rule: structured data must accurately describe content that is actually visible on the page. Google's official guidelines explicitly prohibit marking up content that isn't present on the page. This is exactly why this tool deliberately does not offer star-rating or review-count schema: fabricated ratings and fake reviews are one of Google's best-known policy violations and can trigger a manual action penalty against your site if detected. Always keep structured data limited to information a real visitor can actually see on the page.
When should you use Schema.org JSON-LD Generator?
The KEYDAL Schema.org JSON-LD Generator tool is a browser-based utility that developers, system administrators, SEO specialists and enterprise technology teams use in their daily operations. It requires no installation, is free, and produces results instantly. It is designed so local teams can run audits without connecting to server environments and run analyses without touching production.
Typical scenarios include: post-migration verification, comparing domain or hosting providers, diagnosing customer issues, security auditing (pre-pentest reconnaissance), root-cause analysis of email deliverability problems, validating CDN or proxy configuration, surfacing technical audit data for SEO teams, and rapid information gathering during incident response. You can copy results as text and share them or paste them into internal documentation.
The KEYDAL infrastructure team provides web hosting, VPS, dedicated server management, server hardening, DNS configuration and SSL/TLS deployment services from Türkiye. Beyond these tools, we deliver server setup and operations support across Hetzner, OVHcloud, Contabo, DigitalOcean and Turkish providers.
Your queries are never stored on our servers
KEYDAL tools run stateless: domain names, IPs, URLs or other inputs are not persisted to any database. Logs are kept only for security purposes (rate limiting, abuse detection) and deleted within 30 days. For tools that handle sensitive data (tokens, API keys, JWTs), processing happens entirely in your browser — nothing is sent over the network. See our Privacy Policy for details.
All tools run over HTTPS with TLS 1.3 support. KEYDAL is a Türkiye-based technology company and complies fully with local data-protection regulations (KVKK) and GDPR principles.
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