{"id":73907,"date":"2026-02-08T17:17:39","date_gmt":"2026-02-08T09:17:39","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/73907.html"},"modified":"2026-02-08T17:17:39","modified_gmt":"2026-02-08T09:17:39","slug":"%e6%a6%82%e5%bf%b5%e7%ac%94%e8%ae%b0%ef%bc%9ahtml-%e5%85%83%e6%95%b0%e6%8d%ae-metadata","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/73907.html","title":{"rendered":"\u6982\u5ff5\u7b14\u8bb0\uff1aHTML-\u5143\u6570\u636e (Metadata)"},"content":{"rendered":"<h2>\u6982\u5ff5\u7b14\u8bb0&#xff1a;HTML-\u5143\u6570\u636e (Metadata)<\/h2>\n<h3>\u57fa\u7840<\/h3>\n<ul>\n<li>\u4e00\u53e5\u8bdd\u5b9a\u4e49&#xff1a;\u5143\u6570\u636e\u662f\u201c\u5173\u4e8e\u6570\u636e\u7684\u6570\u636e\u201d\u3002\u5728 HTML \u4e2d&#xff0c;\u5b83\u4eec\u4f4d\u4e8e &lt;head&gt; \u6807\u7b7e\u5185&#xff0c;\u901a\u5e38\u4e0d\u76f4\u63a5\u663e\u793a\u5728\u9875\u9762\u4e0a&#xff0c;\u800c\u662f\u63d0\u4f9b\u7ed9\u673a\u5668&#xff08;\u6d4f\u89c8\u5668\u3001\u641c\u7d22\u5f15\u64ce\u3001\u793e\u4ea4\u8f6f\u4ef6&#xff09;\u8bfb\u53d6\u7684\u4fe1\u606f\u3002<\/li>\n<li>\u4e09\u4e2a\u5fc5\u5907\u5143\u6570\u636e&#xff1a;<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token comment\">&lt;!&#8211; 1. \u58f0\u660e\u5b57\u7b26\u96c6 (\u9632\u4e71\u7801&#xff0c;\u5fc5\u987b\u653e\u5728\u524d1024\u5b57\u8282\u5185) &#8211;&gt;<\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">charset<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>UTF-8<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token comment\">&lt;!&#8211; 2. \u89c6\u53e3\u8bbe\u7f6e (\u79fb\u52a8\u7aef\u9002\u914d\u6838\u5fc3) &#8211;&gt;<\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">name<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>viewport<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>width&#061;device-width, initial-scale&#061;1.0<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token comment\">&lt;!&#8211; 3. \u9875\u9762\u6807\u9898 (SEO\u6743\u91cd\u6700\u9ad8&#xff0c;\u6d4f\u89c8\u5668\u6807\u7b7e\u9875\u6807\u9898) &#8211;&gt;<\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9875\u9762\u6807\u9898<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<\/li>\n<li>\u5206\u7c7b&#xff1a;\n<li>Named Meta (name): \u63cf\u8ff0\u6587\u6863\u5185\u5bb9 (\u5982 description, viewport).<\/li>\n<li>Pragma Directives (http-equiv): \u6a21\u62df HTTP \u54cd\u5e94\u5934 (\u5982 CSP, Refresh).<\/li>\n<li>Open Graph (property): \u793e\u4ea4\u5a92\u4f53\u5206\u4eab\u534f\u8bae.<\/li>\n<\/li>\n<\/ul>\n<h3>\u8fdb\u9636<\/h3>\n<h3>1. \u4e3a\u4ec0\u4e48\u9700\u8981\u5b83&#xff1f; (Motivation)<\/h3>\n<p>\u7f51\u9875\u4e0d\u4ec5\u662f\u7ed9\u4eba\u770b\u7684&#xff0c;\u4e5f\u662f\u7ed9\u673a\u5668\u8bfb\u7684\u3002<\/p>\n<ul>\n<li>\u89e3\u6790\u5668: \u6ca1 charset \u53ef\u80fd\u4f1a\u4e71\u7801\u3002<\/li>\n<li>\u79fb\u52a8\u7aef: \u6ca1 viewport \u4f1a\u7528\u684c\u9762\u5bbd\u5ea6 (980px) \u6e32\u67d3&#xff0c;\u5b57\u8d85\u7ea7\u5c0f\u3002<\/li>\n<li>\u641c\u7d22\u5f15\u64ce: \u6ca1 description&#xff0c;\u641c\u7d22\u7ed3\u679c\u53ef\u80fd\u5c31\u662f\u4e00\u6bb5\u6beb\u65e0\u610f\u4e49\u7684\u6587\u5b57\u3002<\/li>\n<li>\u5b89\u5168\u6027: \u6ca1 CSP (Content Security Policy) \u5bb9\u6613\u88ab XSS \u653b\u51fb\u3002<\/li>\n<\/ul>\n<h3>2. \u6838\u5fc3\u5b9a\u4e49 (Definition)<\/h3>\n<ul>\n<li>\n<p>&lt;meta&gt; \u6807\u7b7e\u7684\u4e09\u79cd\u5f62\u6001:<\/p>\n<li>name \u5c5e\u6027:\n<ul>\n<li>\u7528\u4e8e\u63cf\u8ff0\u9875\u9762\u4fe1\u606f\u3002<\/li>\n<li>\u5e38\u7528\u503c: viewport, description, robots, theme-color.<\/li>\n<li>\u5e9f\u5f03: keywords (\u88ab\u6ee5\u7528&#xff0c;\u641c\u7d22\u5f15\u64ce\u5df2\u5ffd\u7565).<\/li>\n<\/ul>\n<\/li>\n<li>http-equiv \u5c5e\u6027:\n<ul>\n<li>\u76f8\u5f53\u4e8e \u201cMy server headers sit right here\u201d.<\/li>\n<li>\u6838\u5fc3\u503c: content-security-policy (CSP) &#8211; \u9632\u6b62 XSS \u7684\u6700\u5f3a\u9632\u7ebf\u3002<\/li>\n<li>\u614e\u7528: refresh (\u56e0\u4f53\u9a8c\u8f83\u5dee&#xff0c;\u4e00\u822c\u4e0d\u4f7f\u7528).<\/li>\n<\/ul>\n<\/li>\n<li>charset \u5c5e\u6027:\n<ul>\n<li>\u5386\u53f2\u9057\u7559\u7684\u7279\u6743\u5206\u5b50&#xff0c;\u7b49\u540c\u4e8e http-equiv&#061;&#034;Content-Type&#034;. \u8fd9\u91cc\u53ea\u5199 utf-8.<\/li>\n<\/ul>\n<\/li>\n<\/li>\n<li>\n<p>Open Graph (og:tags):<\/p>\n<ul>\n<li>\u4f7f\u7528 property \u800c\u975e name (\u9632\u6b62\u51b2\u7a81).<\/li>\n<li>\u51b3\u5b9a\u94fe\u63a5\u5728Twitter\/Facebook \u5206\u4eab\u65f6\u7684\u201c\u5361\u7247\u201d\u6837\u5f0f (\u56fe\u3001\u6587\u3001\u9898).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>3. \u5e38\u89c1\u573a\u666f<\/h3>\n<ul>\n<li>SEO \u4f18\u5316:<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">name<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>description<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>150\u5b57\u4ee5\u5185\u7684\u7cbe\u51c6\u6458\u8981&#xff0c;\u641c\u7d22\u5f15\u64ce\u4e0d\u4ec5\u770b&#xff0c;\u8fd8\u4f1a\u5c55\u793a\u7ed9\u7528\u6237\u3002<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">name<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>robots<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>index, follow<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token comment\">&lt;!&#8211; \u9ed8\u8ba4\u503c&#xff0c;\u4e0d\u5199\u4e5f\u884c &#8211;&gt;<\/span><br \/>\n<span class=\"token comment\">&lt;!&#8211; \u4e0d\u60f3\u88ab\u6536\u5f55? content&#061;&#034;noindex, nofollow&#034; &#8211;&gt;<\/span><\/p>\n<\/li>\n<li>\u89c6\u89c9\u4f53\u9a8c:<span class=\"token comment\">&lt;!&#8211; \u6539\u53d8\u79fb\u52a8\u7aef\u6d4f\u89c8\u5668\u9876\u680f\u989c\u8272 &#8211;&gt;<\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">name<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>theme-color<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#4285f4<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<\/li>\n<li>\u793e\u4ea4\u5206\u4eab (Open Graph):<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">property<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>og:title<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>\u6587\u7ae0\u6807\u9898<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">property<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>og:image<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>https:\/\/example.com\/cover.jpg<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<\/li>\n<li>\n<hr \/>\n<\/li>\n<\/ul>\n<h3>4. \u6838\u5fc3\u539f\u7406\/\u5e95\u5c42\u903b\u8f91 (How it works)<\/h3>\n<ul>\n<li>\u9884\u89e3\u6790 (Pre-parsing):\n<ul>\n<li>\u6d4f\u89c8\u5668\u5373\u65f6\u6e32\u67d3\u5f15\u64ce&#xff08;Speculative parsing&#xff09;\u5728\u4e0b\u8f7d HTML \u65f6\u4f1a\u5feb\u901f\u626b\u63cf &lt;head&gt;\u3002<\/li>\n<li>1024 \u5b57\u8282\u89c4\u5219: \u6d4f\u89c8\u5668\u901a\u5e38\u53ea\u5728\u524d 1024 \u4e2a\u5b57\u8282\u5185\u5bfb\u627e\u5b57\u7b26\u96c6\u58f0\u660e\u3002\u5982\u679c\u627e\u4e0d\u5230&#xff0c;\u5b83\u53ef\u80fd\u4f1a\u6682\u505c\u5e76\u7b49\u5f85&#xff0c;\u6216\u8005\u5c1d\u8bd5\u731c\u6d4b&#xff08;\u53ef\u80fd\u731c\u9519&#xff09;\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48 charset \u5fc5\u987b\u7f6e\u9876\u7684\u539f\u56e0\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>5. \u8003\u9898<\/h3>\n<ul>\n<li class=\"task-list-item\"> Q1: &lt;meta charset&#061;&#034;UTF-8&#034;&gt; \u4e3a\u4ec0\u4e48\u8981\u5199\u5728 &lt;title&gt; \u524d\u9762&#xff1f;<br \/>\n&#8211; \u7b54: \u907f\u514d XSS \u548c\u4e71\u7801\u3002Title \u53ef\u80fd\u5305\u542b\u975e ASCII \u5b57\u7b26&#xff0c;\u5982\u679c\u6d4f\u89c8\u5668\u8bfb\u5230 Title \u65f6\u8fd8\u4e0d\u77e5\u9053\u7f16\u7801&#xff0c;\u53ef\u80fd\u4f1a\u628a\u540e\u9762\u7684\u4ee3\u7801\u89e3\u6790\u9519\u3002<\/li>\n<li class=\"task-list-item\"> Q2: \u79fb\u52a8\u7aef\u5f00\u53d1\u7684 Viewport \u6807\u51c6\u5199\u6cd5\u662f&#xff1f;<br \/>\n&#8211; \u7b54: width&#061;device-width, initial-scale&#061;1.0\u3002<\/li>\n<li class=\"task-list-item\"> Q3: http-equiv \u548c name \u7684\u533a\u522b&#xff1f;<br \/>\n&#8211; \u7b54: name \u63cf\u8ff0\u5185\u5bb9&#xff0c;http-equiv \u6a21\u62df HTTP \u5934\u63a7\u5236\u6d4f\u89c8\u5668\u884c\u4e3a (\u5982\u7f13\u5b58\u3001\u5b89\u5168\u7b56\u7565)\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u5ff5\u7b14\u8bb0&#xff1a;HTML-\u5143\u6570\u636e (Metadata)<br \/>\n\u57fa\u7840<br \/>\n\u4e00\u53e5\u8bdd\u5b9a\u4e49&#xff1a;\u5143\u6570\u636e\u662f\u201c\u5173\u4e8e\u6570\u636e\u7684\u6570\u636e\u201d\u3002\u5728 HTML \u4e2d&#xff0c;\u5b83\u4eec\u4f4d\u4e8e  \u6807\u7b7e\u5185&#xff0c;\u901a\u5e38\u4e0d\u76f4\u63a5\u663e\u793a\u5728\u9875\u9762\u4e0a&#xff0c;\u800c\u662f\u63d0\u4f9b\u7ed9\u673a\u5668&#xff08;\u6d4f\u89c8\u5668\u3001\u641c\u7d22\u5f15\u64ce\u3001\u793e\u4ea4\u8f6f\u4ef6&#xff09;\u8bfb\u53d6\u7684\u4fe1\u606f\u3002\u4e09\u4e2a\u5fc5\u5907\u5143\u6570\u636e&#xff1a;<!-- 1. \u58f0\u660e\u5b57\u7b26\u96c6 (\u9632\u4e71\u7801&#xff0c;\u5fc5\u987b\u653e\u5728\u524d1024\u5b57\u8282\u5185) -->&lt;meta charset\\&quot;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[567,87,305],"topic":[],"class_list":["post-73907","post","type-post","status-publish","format-standard","hentry","category-server","tag-html","tag-87","tag-305"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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