使用文档

<!-- 引入 jQuery -->
<script src="https://cdn.jsdmirror.com/npm/jquery@3.7.1/dist/jquery.min.js"></script>

<!-- 引入 Bootstrap -->
<link rel="stylesheet" href="https://cdn.jsdmirror.com/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdmirror.com/npm/bootstrap@5.3.0/dist/js/bootstrap.min.js"></script>

<!-- 引入 Vue -->
<script src="https://cdn.jsdmirror.com/npm/vue@3.3.4/dist/vue.global.js"></script>

<!-- 单个 script 回退 -->
<script src="https://cdn.jsdmirror.com/npm/jquery@3.7.1/dist/jquery.min.js"
        onerror="this.onerror=null;this.src='https://cdn.bring.cool/npm/jquery@3.7.1/dist/jquery.min.js'">
</script>

<!-- 单个 link 回退 -->
<link rel="stylesheet" href="https://cdn.jsdmirror.com/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css"
      onerror="this.onerror=null;this.href='https://cdn.bring.cool/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css'">

/* 全局 CDN 回退配置 */
(function() {
  var backups = {
    'cdn.jsdmirror.com': 'cdn.bring.cool',
    'cdn.jsdmirror.com/npm': 'cdn.bring.cool/npm',
    'cdn.jsdmirror.com/gh': 'cdn.bring.cool/gh',
  };

  document.addEventListener('error', function(e) {
    var el = e.target;
    var src = (el.src || el.href || '');
    if (!src) return;

    for (var key in backups) {
      if (src.indexOf(key) !== -1) {
        var fallback = src.replace(key, backups[key]);
        if (el.tagName === 'SCRIPT' && el.src) {
          el.onerror = null;
          el.src = fallback;
        } else if (el.tagName === 'LINK' && el.href) {
          el.onerror = null;
          el.href = fallback;
        }
        break;
      }
    }
  }, true);
})();

<!-- 多地址级联回退：依次尝试 jsdmirror → bring.cool -->
<script>
(function multiFallback(tag, urls, idx) {
  idx = idx || 0;
  if (idx >= urls.length) {
    console.error('[Fallback] 所有 CDN 地址均加载失败: ' + urls.join(', '));
    return;
  }
  var el = document.createElement(tag === 'script' ? 'script' : 'link');
  if (tag === 'script') {
    el.src = urls[idx];
    el.async = true;
  } else {
    el.rel = 'stylesheet';
    el.href = urls[idx];
  }
  el.onerror = function() {
    this.onerror = null;
    this.remove();
    multiFallback(tag, urls, idx + 1);
  };
  document.head.appendChild(el);
})('script', [
  'https://cdn.jsdmirror.com/npm/jquery@3.7.1/dist/jquery.min.js',
  'https://cdn.bring.cool/npm/jquery@3.7.1/dist/jquery.min.js',
]);

https://cdn.jsdmirror.com/npm/{package}@{version}/{file}

https://cdn.jsdmirror.com/npm/@babel/core@7.23.0/lib/index.js
https://cdn.jsdmirror.com/npm/@vue/runtime-dom@3.3.4/dist/runtime-dom.esm-browser.js

https://cdn.jsdmirror.com/npm/jquery@3.7.1/
https://cdn.jsdmirror.com/npm/jquery@3.7.1/dist/

<!-- 指定版本的 jQuery -->
<script src="https://cdn.jsdmirror.com/npm/jquery@3.7.1/dist/jquery.min.js"></script>

<!-- 最新版本的 Vue -->
<script src="https://cdn.jsdmirror.com/npm/vue/dist/vue.global.js"></script>

<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://cdn.jsdmirror.com/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css">

<!-- Scoped 包示例 -->
<script src="https://cdn.jsdmirror.com/npm/@babel/standalone@7.23.0/babel.min.js"></script>

https://cdn.jsdmirror.com/gh/{user}/{repo}@{branch}/{file}

https://cdn.jsdmirror.com/gh/twbs/bootstrap@v5.3.0/dist/css/bootstrap.min.css

https://cdn.jsdmirror.com/gh/jquery/jquery@main/dist/jquery.min.js

https://cdn.jsdmirror.com/gh/user/repo@a1b2c3d/dist/bundle.js

https://cdn.jsdmirror.com/wp/plugins/{slug}/tags/{version}/{file}
https://cdn.jsdmirror.com/wp/themes/{slug}/{version}/{file}

https://cdn.jsdmirror.com/wp/plugins/akismet/tags/4.1.12/akismet.js

https://cdn.jsdmirror.com/wp/themes/twentytwenty/2.0/style.css

https://cdn.jsdmirror.com/cnb/{org}/{repo}@{version}/{file}

https://cdn.jsdmirror.com/cnb/jsdmirror/jsdmirror@main/README.md

https://cdn.jsdmirror.com/cnb/org/sub-org/repo@main/dist/bundle.js

https://cdn.jsdmirror.com/cnb/mycompany/frontend/ui-lib@v2.0.0/index.css

<!-- 按分支名引用 -->
https://cdn.jsdmirror.com/cnb/jsdmirror/json@main/third-party-mirrors.json

<!-- 按 tag 名引用 -->
https://cdn.jsdmirror.com/cnb/myorg/myrepo@v1.0.0/release/bundle.min.js

<!-- 按 commit SHA 引用 -->
https://cdn.jsdmirror.com/cnb/myorg/myrepo@abc123def/dist/app.js

<!-- 省略版本号，使用默认分支 -->
https://cdn.jsdmirror.com/cnb/myorg/myrepo/dist/app.js

https://fonts.cdn.xzzo.cn/css2?family={Font}:wght@{weight}&display=swap

https://fonts.cdn.xzzo.cn/css2?family=Roboto:wght@400&display=swap

<!-- 预连接到 CSS 和字体文件域名，加快首屏加载 -->
<link rel="preconnect" href="https://fonts.cdn.xzzo.cn">
<link rel="preconnect" href="https://font.cdn.xzzo.cn" crossorigin>

<!-- 引入 Roboto 字体 -->
<link rel="stylesheet" href="https://fonts.cdn.xzzo.cn/css2?family=Roboto:wght@400;700&display=swap">

<style>
  body {
    font-family: 'Roboto', sans-serif;
  }
</style>

https://gravatar.cdn.xzzo.cn/avatar/{sha256(email)}

https://gravatar.cdn.xzzo.cn/avatar/5d549030c6a922e55d14e5df541602d8053f864865da5c4a172c07d6bc9c4766

const sha256 = require('js-sha256');

function getGravatarURL(email) {
  // 去除首尾空格并转小写
  const address = String(email).trim().toLowerCase();
  // 计算 SHA256 哈希
  const hash = sha256(address);
  // 拼接头像 URL
  return `https://gravatar.cdn.xzzo.cn/avatar/${hash}`;
}

<?php
function get_gravatar_url($email) {
  // 去除首尾空格并转小写
  $address = strtolower(trim($email));
  // 计算 SHA256 哈希
  $hash = hash('sha256', $address);
  // 拼接头像 URL
  return 'https://gravatar.cdn.xzzo.cn/avatar/' . $hash;
}

https://cdn.jsdmirror.com/combine/{source}/{package}@{version}/{file1},{source}/{package}@{version}/{file2}

https://cdn.jsdmirror.com/combine/npm/jquery@3.7.1/dist/jquery.min.js,npm/bootstrap@5.3.0/dist/js/bootstrap.min.js

https://cdn.jsdmirror.com/combine/gh/user/repo@main/a.js,gh/user/repo@main/b.js

https://cdn.jsdmirror.com/npm/jquery@3.7.1/package.json

https://cdn.jsdmirror.com/npm/jquery/

{
  "name": "my-library",
  "version": "1.0.0",
  "jsdelivr": "./dist/my-library.min.js",
  "style": "./dist/my-library.min.css"
}

integrity="sha384-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

cat FILENAME.js | openssl dgst -sha384 -binary | openssl base64 -A

shasum -b -a 384 FILENAME.js | awk '{ print $1 }' | xxd -r -p | base64

@echo off
set bits=384
openssl dgst -sha%bits% -binary %1% | openssl base64 -A > tmp
set /p a= < tmp
del tmp
echo sha%bits%-%a%
pause

<script
  src="https://cdn.jsdmirror.com/npm/jquery@3.7.1/dist/jquery.min.js"
  integrity="sha512-v2CJ7UaYy4JwqLDIrZUI/4hqeoQieOmAZNXBeQyjo21dadnwR+8ZaIJVT8EE2iyI61OV8e6M8PP2/4hpQINQ/g=="
  crossorigin="anonymous">
</script>

<link
  rel="stylesheet"
  href="https://cdn.jsdmirror.com/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css"
  integrity="sha512-jnSuA4Ss2PkkikSOLtYs8BlYIeeIK1h99ty4YfvRPAlzr377vr3CXDb7sb7eEEBYjDtcYj+AjBH3FLv5uSJuXg=="
  crossorigin="anonymous">

<script
  src="https://cdn.jsdmirror.com/npm/lodash@4.17.21/lodash.min.js"
  integrity="sha384-M6AVYaH6du1M4aPFfoO9lfZxjGbksZf5X0U4Y6L+ZxgZh8Bj8TsNhqgIz6qSPbw sha512-F7IzMNt3cX/jKpJOBaVWyOQZrF2Yy5L3y7LqR+uGW8bPqCwnCsxHX9kRr3jDF/HkBHCeQQ5VgSYVjXZQbbKVw=="
  crossorigin="anonymous">
</script>

# 把这部分加到你的 location 块里就搞定了
location / {
    proxy_pass https://cdn.jsdmirror.com;

    # 需要清理的响应头，防止被后端安全策略拦截
    proxy_hide_header server;
    proxy_hide_header cdn;
    proxy_hide_header x-served-by;
    proxy_hide_header x-client-ip;
    proxy_hide_header x-client-city;
    proxy_hide_header x-client-country;
    proxy_hide_header x-client-continent;
    proxy_hide_header x-client-port;
    proxy_hide_header requestsource;
    proxy_hide_header x-ua;
    proxy_hide_header x-platform;
    proxy_hide_header x-request-uri;

    # 下面这些顺手也去了吧，少暴露一点来源信息
    proxy_hide_header x-cache;
    proxy_hide_header x-cache-hits;
    proxy_hide_header via;
}