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:cancer: 一个 Chrome 插件:将 Google CDN 替换为国内的。

Home Page: https://chrome.google.com/webstore/detail/replace-google-cdn/kpampjmfiopfpkkepbllemkibefkiice

License: GNU General Public License v3.0

JavaScript 85.17% HTML 13.32% Shell 0.93% CSS 0.59%

replacegooglecdn's Introduction

Replace Google CDN

Chrome Web Store

将 Google CDN 替换为国内的。

缘起

由于众所周知的原因,只需替换一个域名就可以继续使用 Google 提供的前端公共库了。 同样,通过 script 标记引用这些资源,让网站访问速度瞬间提速!

很多网站,尤其是国外网站,为了加快网站的速度,都使用了 Google 的 CDN。 但是在天朝,由于某些原因,导致全球最快的 CDN 变成了全球最慢的。

于是,我写了这个插件/扩展,将 Google 的 CDN 替换成国内的。

原理

此插件/扩展可以将以下的 cdn 资源替换为国内的:

  1. ajax.googleapis.com - 前端公共库,替换为 ajax.loli.net
  2. fonts.googleapis.com - 免费字体库,替换为 fonts.loli.net
  3. themes.googleusercontent.com - fonts 有时会使用到这个里面的资源,替换为 themes.loli.net
  4. fonts.gstatic.com - 免费字体库,替换为 gstatic.loli.net
  5. www.google.com/recaptcha - Google 图像验证库,替换为 www.recaptcha.net/recaptcha
  6. secure.gravatar.com - gravatar 头像,替换为 gravatar.loli.net
  7. maxcdn.bootstrapcdn.com/bootstrap - bootstrap 框架使用的 CDN,替换为 cdn.bootcdn.net/ajax/libs/twitter-bootstrap

效果

安装扩展/插件后访问 https://stackoverflow.com/questions 页面:

第一行是 jquery.min.js 的原始请求 https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js,被拦截并替换,返回的状态码为 307 Internal Redirect,耗时 26ms。第三行是 jquery.min.js 被替换后的请求,33kB,耗时 95ms。

下表是各种资源的网络请求对比(以替换后的速度为基准 100%):

资源 来源 尺寸(kB) 时间(ms) 速度(B/ms) 百分比
jquery.min.js ajax.googleapis.com 0 26 - -
stub.en.js cdn.sstatic.net 18.0 293 61.4 18%
jquery.min.js ajax.loli.net ⚡️ 33.1 95 348.4 100%
clc.min.js cdn.sstatic.net 4.2 399 10.5 30%
full.en.js cdn.sstatic.net 99.6 534 186.5 54%
gpt.js securepubads.g.doubleclick.net 21.3 85 250.6 72%
analytics.js google-analytics.com 19.6 79 248.1 71%
quant.js secure.quantserve.com 9.1 420 21.7 62%
beacon.js sb.scorecardresearch.com 1.8 73 24.7 71%
integrator.js adservice.google.com 🐌 0.3 87 3.4 1%
markup.js clc.stackoverflow.com 🐌 9.2 252 36.5 10%
osd.js googletagservices.com 28.1 90 312.2 89%
rules-p-c1rF4kxgLUzNc.js rules.quantcount.com 🐌 0.4 96 4.2 1%
keyboard-shortcuts.en.js cdn.sstatic.net 7.3 75 97.3 27.9%

安装

在线安装

手动安装

Chrome 安装方法(Google 被墙了上不去):

  1. 下载 ReplaceGoogleCDN 然后解压,找到 extension 子目录
  2. 打开 Chrome,输入: chrome://extensions/
  3. 勾选 Developer Mode
  4. 选择 Load unpacked extension... 然后定位到刚才解压的文件夹里面的 chrome 目录,确定
  5. 这就安装好了,去掉 Developer Mode 勾选。

replacegooglecdn's People

Contributors

andy380743909 avatar coldsauce avatar dishuostec avatar endle avatar fjy202 avatar i36lib avatar jingjingxyk avatar justjavac avatar mishi321 avatar netcore-jroger avatar wuxianucw avatar yuxuanzuo avatar

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