JSON-LD

JSON for Linking Data

A format for embedding structured data in web pages using JSON within a script tag, preferred by Google.

Chi tiết kỹ thuật

JSON-LD directly influences click-through rates from search results. Google typically displays the first 50-60 characters of a title tag and 150-160 characters of a meta description, though it may rewrite descriptions based on query relevance. Each page should have a unique title containing primary keywords near the beginning. The meta description acts as ad copy — it doesn't directly affect rankings but affects whether users click. Open Graph (og:) and Twitter Card meta tags control social media previews separately from search results.

Ví dụ

```html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "WebApplication",
  "name": "PDF Merge Tool",
  "applicationCategory": "UtilitiesApplication",
  "offers": { "@type": "Offer", "price": "0" },
  "operatingSystem": "Any (browser-based)"
}
</script>
```

Định dạng liên quan

.json .pages

Công cụ liên quan

S SERP Preview O OG Tag Debugger H Heading Analyzer K Keyword Density Analyzer R Readability Score X XML Sitemap Generator S Schema.org Generator L Link Extractor C Canonical Tag Checker Đ Định Dạng JSON R Robots.txt Analyzer S Structured Data Validator W Word Count & SEO Grade M Meta Length Checker U URL Slug Generator K Keyword Density Analyzer

Thuật ngữ liên quan

JSON JSON Schema JSON Patch Canonical URL Alt Text Backlink Anchor Text CLS 301 Redirect Breadcrumb Core Update JSON Lines