What changed

"鸭老师SEO"

"什么是Canonical URL？规范化标签的重要性 – 鸭老师SEO"

"Canonical URL（也称 canonical tag）是一种 HTML 标记，用于告诉搜索引擎：在一组内容相同或高度相似的页面中，哪一个才是主页面（标准网址）。"

"follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large"

"Canonical URL（也称 canonical tag）是一种 HTML 标记，用于告诉搜索引擎：在一组内容相同或高度相似的页面中，哪一个才是主页面（标准网址）。"

"https://www.ylsseo.com/wp-content/uploads/局部截取_20251227_112326.png"

"什么是Canonical URL？规范化标签的重要性"

"365"

"https://www.ylsseo.com/wp-content/uploads/局部截取_20251227_112326.png"

"image/png"

"516"

"zh_CN"

"YLSSEO"

"什么是Canonical URL？规范化标签的重要性 – 鸭老师SEO"

"article"

"2026-05-20T12:13:23+08:00"

"https://www.ylsseo.com/canonical/"

"summary"

"@https://x.com/seoyls"

"Canonical URL（也称 canonical tag）是一种 HTML 标记，用于告诉搜索引擎：在一组内容相同或高度相似的页面中，哪一个才是主页面（标准网址）。"

"https://www.ylsseo.com/wp-content/uploads/局部截取_20251227_112326.png"

"@https://x.com/seoyls"

"什么是Canonical URL？规范化标签的重要性 – 鸭老师SEO"

[]

[
  {
    "@context": "https://schema.org",
    "@graph": [
      {
        "@id": "https://www.ylsseo.com/#organization",
        "@type": "Organization",
        "logo": {
          "@id": "https://www.ylsseo.com/#logo",
          "@type": "ImageObject",
          "caption": "YLSSEO",
          "contentUrl": "https://www.ylsseo.com/wp-content/uploads/cropped-ylsseo-logo.png",
          "height": "512",
          "inLanguage": "zh-Hans",
          "url": "https://www.ylsseo.com/wp-content/uploads/cropped-ylsseo-logo.png",
          "width": "512"
        },
        "name": "YLSSEO",
        "sameAs": [
          "https://twitter.com/https://x.com/seoyls"
        ]
      },
      {
        "@id": "https://www.ylsseo.com/#website",
        "@type": "WebSite",
        "alternateName": "鸭老师SEO",
        "inLanguage": "zh-Hans",
        "name": "YLSSEO",
        "publisher": {
          "@id": "https://www.ylsseo.com/#organization"
        },
        "url": "https://www.ylsseo.com"
      },
      {
        "@id": "https://www.ylsseo.com/wp-content/uploads/局部截取_20251227_112326.png",
        "@type": "ImageObject",
        "height": "200",
        "inLanguage": "zh-Hans",
        "url": "https://www.ylsseo.com/wp-content/uploads/局部截取_20251227_112326.png",
        "width": "200"
      },
      {
        "@id": "https://www.ylsseo.com/canonical/#breadcrumb",
        "@type": "BreadcrumbList",
        "itemListElement": [
          {
            "@type": "ListItem",
            "item": {
              "@id": "https://www.ylsseo.com",
              "name": "首页"
            },
            "position": "1"
          },
          {
            "@type": "ListItem",
            "item": {
              "@id": "https://www.ylsseo.com/seo-tutorial/",
              "name": "谷歌SEO教程"
            },
            "position": "2"
          },
          {
            "@type": "ListItem",
            "item": {
              "@id": "https://www.ylsseo.com/canonical/",
              "name": "什么是Canonical URL？规范化标签的重要性"
            },
            "position": "3"
          }
        ]
      },
      {
        "@id": "https://www.ylsseo.com/canonical/#webpage",
        "@type": [
          "WebPage",
          "FAQPage"
        ],
        "breadcrumb": {
          "@id": "https://www.ylsseo.com/canonical/#breadcrumb"
        },
        "dateModified": "2026-05-20T12:13:23+08:00",
        "datePublished": "2025-12-27T11:02:19+08:00",
        "inLanguage": "zh-Hans",
        "isPartOf": {
          "@id": "https://www.ylsseo.com/#website"
        },
        "mainEntity": [
          {
            "@type": "Question",
            "acceptedAnswer": {
              "@type": "Answer",
              "text": "301是强制重定向，A强制重定向到B，A就不存在。canonical url是提示，谷歌有可能不遵守，设置成功后，A页面照样可以被用户访问"
            },
            "name": "canonical url跟301的区别",
            "url": "https://www.ylsseo.com/canonical/#faq-question-1766804378829"
          }
        ],
        "name": "什么是Canonical URL？规范化标签的重要性 \u0026ndash; 鸭老师SEO",
        "primaryImageOfPage": {
          "@id": "https://www.ylsseo.com/wp-content/uploads/局部截取_20251227_112326.png"
        },
        "url": "https://www.ylsseo.com/canonical/"
      },
      {
        "@id": "https://www.ylsseo.com/canonical/#author",
        "@type": "Person",
        "image": {
          "@id": "https://secure.gravatar.com/avatar/aac399a511737325d8e5ee2505c471c7448f8bed5c760f77bc966e37a76223e3?s=96\u0026amp;d=blank\u0026amp;r=g",
          "@type": "ImageObject",
          "caption": "鸭老师SEO",
          "inLanguage": "zh-Hans",
          "url": "https://secure.gravatar.com/avatar/aac399a511737325d8e5ee2505c471c7448f8bed5c760f77bc966e37a76223e3?s=96\u0026amp;d=blank\u0026amp;r=g"
        },
        "name": "鸭老师SEO",
        "worksFor": {
          "@id": "https://www.ylsseo.com/#organization"
        }
      },
      {
        "@id": "https://www.ylsseo.com/canonical/#richSnippet",
        "@type": "BlogPosting",
        "articleSection": "谷歌SEO教程",
        "author": {
          "@id": "https://www.ylsseo.com/canonical/#author",
          "name": "鸭老师SEO"
        },
        "dateModified": "2026-05-20T12:13:23+08:00",
        "datePublished": "2025-12-27T11:02:19+08:00",
        "description": "Canonical URL（也称 canonical tag）是一种 HTML 标记，用于告诉搜索引擎：在一组内容相同或高度相似的页面中，哪一个才是主页面（标准网址）。",
        "headline": "什么是Canonical URL？规范化标签的重要性 \u0026ndash; 鸭老师SEO",
        "image": {
          "@id": "https://www.ylsseo.com/wp-content/uploads/局部截取_20251227_112326.png"
        },
        "inLanguage": "zh-Hans",
        "isPartOf": {
          "@id": "https://www.ylsseo.com/canonical/#webpage"
        },
        "mainEntityOfPage": {
          "@id": "https://www.ylsseo.com/canonical/#webpage"
        },
        "name": "什么是Canonical URL？规范化标签的重要性 \u0026ndash; 鸭老师SEO",
        "publisher": {
          "@id": "https://www.ylsseo.com/#organization"
        }
      }
    ]
  }
]