JSON-LD স্কিমা মার্কআপ: সম্পূর্ণ SEO বাস্তবায়ন গাইড

private class ArticleSchema
{
    [JsonPropertyName("@context")]
    public string Context { get; } = "https://schema.org";

    [JsonPropertyName("@type")]
    public string Type { get; } = "Article";

    [JsonPropertyName("headline")]
    public string? Headline { get; set; }

    [JsonPropertyName("description")]
    public string? Description { get; set; }

    [JsonPropertyName("image")]
    public string? Image { get; set; }

    [JsonPropertyName("url")]
    public string? Url { get; set; }

    [JsonPropertyName("author")]
    public Organization? Author { get; set; }

    [JsonPropertyName("publisher")]
    public ArticlePublisher? Publisher { get; set; }

    [JsonPropertyName("datePublished")]
    public string? DatePublished { get; set; }

    [JsonPropertyName("dateModified")]
    public string? DateModified { get; set; }

    [JsonPropertyName("articleSection")]
    public List<string>? ArticleSection { get; set; }
}

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "JSON-LD Schema Markup: Complete SEO Implementation Guide",
  "description": "Learn how to implement JSON-LD structured data for Article, FAQPage, BreadcrumbList, WebSite, and WebPage schema types.",
  "image": "https://ghostlyinc.com/images/web/jsonldguide/opengraph/hero-1200.png",
  "url": "https://ghostlyinc.com/en/json-ld-schema-markup-seo-guide/",
  "author": {
    "@type": "Organization",
    "name": "GhostlyInc",
    "url": "https://ghostlyinc.com"
  },
  "publisher": {
    "@type": "Organization",
    "name": "GhostlyInc",
    "logo": {
      "@type": "ImageObject",
      "url": "https://ghostlyinc.com/images/logo.png"
    }
  },
  "datePublished": "2026-03-28T10:00:00Z",
  "dateModified": "2026-03-28T10:00:00Z",
  "articleSection": [
    "What is JSON-LD and why it matters for SEO",
    "JSON-LD vs. Microdata vs. RDFa",
    "Core schema types and when to use them",
    "Article schema implementation"
  ]
}
</script>

private class FaqPage
{
    [JsonPropertyName("@context")]
    public string Context { get; } = "https://schema.org";

    [JsonPropertyName("@type")]
    public string Type { get; } = "FAQPage";

    [JsonPropertyName("@id")]
    public string? Id { get; set; }

    [JsonPropertyName("name")]
    public string? Name { get; set; }

    [JsonPropertyName("mainEntity")]
    public List<FaqEntity>? MainEntity { get; set; }
}

private class FaqEntity
{
    [JsonPropertyName("@type")]
    public string Type { get; } = "Question";

    [JsonPropertyName("name")]
    public string? Name { get; set; }

    [JsonPropertyName("acceptedAnswer")]
    public FaqAnswer? AcceptedAnswer { get; set; }
}

private class FaqAnswer
{
    [JsonPropertyName("@type")]
    public string Type { get; } = "Answer";

    [JsonPropertyName("text")]
    public string? Text { get; set; }
}

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "@id": "https://ghostlyinc.com/en/json-ld-schema-markup-seo-guide/#faq",
  "name": "Frequently asked questions",
  "mainEntity": [
    {
      "@type": "Question",
      "name": "What is the difference between JSON-LD and Microdata?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "JSON-LD is a separate script block that lives in the head and does not touch HTML. Microdata adds attributes directly to HTML elements. Google recommends JSON-LD for its maintainability."
      }
    },
    {
      "@type": "Question",
      "name": "How many FAQ questions can I mark up?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Google supports up to ten questions per page for the FAQ rich result. Additional questions are still valid schema but will not appear in the search result enhancement."
      }
    }
  ]
}
</script>

private class BreadcrumbListSchema
{
    [JsonPropertyName("@context")]
    public string Context { get; } = "https://schema.org";

    [JsonPropertyName("@type")]
    public string Type { get; } = "BreadcrumbList";

    [JsonPropertyName("itemListElement")]
    public List<BreadcrumbListElement>? ItemListElement { get; set; }
}

private class BreadcrumbListElement
{
    [JsonPropertyName("@type")]
    public string Type { get; } = "ListItem";

    [JsonPropertyName("position")]
    public int Position { get; set; }

    [JsonPropertyName("name")]
    public string? Name { get; set; }

    [JsonPropertyName("item")]
    public string? Item { get; set; }
}

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "BreadcrumbList",
  "itemListElement": [
    {
      "@type": "ListItem",
      "position": 1,
      "name": "Home",
      "item": "https://ghostlyinc.com/en/"
    },
    {
      "@type": "ListItem",
      "position": 2,
      "name": "Web SEO Hub",
      "item": "https://ghostlyinc.com/en/web-seo/"
    },
    {
      "@type": "ListItem",
      "position": 3,
      "name": "JSON-LD Schema Markup: Complete SEO Implementation Guide",
      "item": "https://ghostlyinc.com/en/json-ld-schema-markup-seo-guide/"
    }
  ]
}
</script>

private class WebSiteSchema
{
    [JsonPropertyName("@context")]
    public string Context { get; } = "https://schema.org";

    [JsonPropertyName("@type")]
    public string Type { get; } = "WebSite";

    [JsonPropertyName("name")]
    public string? Name { get; set; }

    [JsonPropertyName("url")]
    public string? Url { get; set; }

    [JsonPropertyName("inLanguage")]
    public string? InLanguage { get; set; }

    [JsonPropertyName("publisher")]
    public Organization? Publisher { get; set; }
}

private class WebPageSchema
{
    [JsonPropertyName("@context")]
    public string Context { get; } = "https://schema.org";

    [JsonPropertyName("@type")]
    public string Type { get; } = "WebPage";

    [JsonPropertyName("@id")]
    public string? Id { get; set; }

    [JsonPropertyName("name")]
    public string? Name { get; set; }

    [JsonPropertyName("description")]
    public string? Description { get; set; }

    [JsonPropertyName("url")]
    public string? Url { get; set; }

    [JsonPropertyName("inLanguage")]
    public string? InLanguage { get; set; }

    [JsonPropertyName("isPartOf")]
    public WebSiteReference? IsPartOf { get; set; }
}

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "name": "GhostlyInc",
  "url": "https://ghostlyinc.com",
  "inLanguage": "en",
  "publisher": {
    "@type": "Organization",
    "name": "GhostlyInc",
    "url": "https://ghostlyinc.com"
  }
}
</script>

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "WebPage",
  "@id": "https://ghostlyinc.com/en/json-ld-schema-markup-seo-guide/",
  "name": "JSON-LD Schema Markup: Complete SEO Implementation Guide",
  "description": "Learn how to implement JSON-LD structured data for Article, FAQPage, BreadcrumbList, WebSite, and WebPage schema types.",
  "url": "https://ghostlyinc.com/en/json-ld-schema-markup-seo-guide/",
  "inLanguage": "en",
  "isPartOf": {
    "@type": "WebSite",
    "@id": "https://ghostlyinc.com"
  }
}
</script>

private static MarkupString WrapInScriptTag(string json)
{
    var builder = new StringBuilder();
    builder.AppendLine("<script type=\"application/ld+json\">");
    builder.AppendLine(json);
    builder.AppendLine("</script>");

    return new MarkupString(builder.ToString());
}

public SchemaBuildResult BuildSchema(SchemaContext context)
{
    if (context == null) throw new ArgumentNullException(nameof(context));

    var jsonLd = new List<MarkupString>();

    switch (context.PageType)
    {
        case PageSchemaType.Home:
            jsonLd.Add(WebSite(context));
            jsonLd.Add(WebPage(context));
            break;
        case PageSchemaType.Article:
            jsonLd.Add(Article(context.Article!));
            break;
        case PageSchemaType.Tool:
            jsonLd.Add(WebPage(context));
            jsonLd.Add(SoftwareApplication(context.SoftwareApplication!));
            break;
        case PageSchemaType.Hub:
            jsonLd.Add(WebPage(context));
            break;
    }

    if (context.Faqs != null && context.Faqs.Count > 0)
    {
        jsonLd.Add(FAQ(context.Faqs.ToList(), context.FaqTitle, context.Url));
    }

    if (context.ParentHierarchy.Count > 0)
    {
        jsonLd.Add(BreadcrumbList(BuildBreadcrumbItems(context)));
    }

    return new SchemaBuildResult(jsonLd, context.PageType == PageSchemaType.Article);
}