Google爱好者

Google Accelerator网页加速软件更新

八月 5th, 2007

Google Web Accelerator 是Google 官方推出的网页加速工具 . Google Web Accelerator works with your browser to help web pages show up in a snap .

最新版本号是 0.2.93.116
下载地址：http://webaccelerator.google.com/?38e931e7a9d1451bbb8f4808ea6aa0ed

Google Web Accelerator的网页加速原理是：访问网页是通过Google的服务器，加速网页浏览，类似于代理服务器，但是不能加速媒体文件等，对欧美用户有帮助，国内效果一般。

Google Web Accelerator的详细情况如下：

2005年5月6日消息，Google已经推出了一种旨在加快Web网站加载速度的技术。

当地时间本周三晚些时候，Google在其Google Labs网站上发布了测试版Web Accelerator。这款工具可以利用Google全球的计算机网络的处理能力，提高网站的加载速度。

Web Accelerator的工作原理是通过利用专门用来提高网站加载速度的服务器发送URL请求，它还能够在向计算机发送前对网站数据进行压缩。

Google的这一系统存储用户经常访问的网站的拷贝，并自动获取这些网站的新数据，当用户请求访问这些网站时，浏览器仅仅需要加载网站上更新的部分。 Google表示，这一工具在一些网页上不能使用，例如由金融服务公司管理的加密网页。另外，它还不能用于加速多媒体文件的下载。

在一封电子邮件中，Google的一名代表说，Google总是在不断地寻求帮助其用户更迅速地访问信息的新途径。这名代表指出，现在我们将利用我们高效的网络帮助用户迅速地加载其它网页，即使用户离开了Google.com，他们仍然能够享受到快速的网络体验。

Web Accelerator测试版主要面向配置有宽带连接的计算机，使用拨号连接的客户可能不会体会到大幅度的改进。Google表示，第一阶段的β测试工作主要面向欧洲和北美，不会加速这二个大陆之外的网络浏览。

要使用这一工具，计算机必须运行Windows XP或2000、IE 5.5及以上版本的IE浏览器或Firefox 1.0浏览器。Google说，用户也可以对运行在Windows上的其它浏览器进行人工配置，以运行Web Accelerator。在安装Web Accelerator后，浏览器上将会显示一个工具条。

Google表示，为了消除与存储互联网使用资料相关的潜在的隐私担忧，Web Accelerator收集的信息与用户已经与ISP共享的信息相同。Google的这名代表说，Google已经采取必要的措施，确保这一工具不会发送 可能导致一些形式的网络攻击的信息。Google称，为了躲开加密网站，Web Accelerator可以设置为不从网站上预取数据，清除下载的网站清单。

Web Accelerator标志着Google利用其庞大的全球服务器网络的计算能力的最新努力。去年，Google就利用其庞大的服务器网络推出了容量高达1GB的Gmail电子邮件服务，并在后来进一步将Gmail的容量提高至2GB。

Google Web Accelerator英文介绍：

Google Web Accelerator Basics

1. What is Google Web Accelerator?

Google Web Accelerator is an application that uses the power of Google’s global computer network to make web pages load faster. Google Web Accelerator is easy to use; all you have to do is download and install it, and from then on many web pages will automatically load faster than before.

Please note that Google Web Accelerator is currently in beta test mode. If you have any problems using it or have suggestions for how we can improve it, please see the Google Group devoted to it.

Also note that during the first part of our beta testing period, users outside of North America and Europe may not see much improvement in their web page loading speed.

2. How does Google Web Accelerator work?

Google Web Accelerator uses various strategies to make your web pages load faster, including:

Sending your page requests through Google machines dedicated to handling Google Web Accelerator traffic.
Storing copies of frequently looked at pages to make them quickly accessible.
Downloading only the updates if a web page has changed slightly since you last viewed it.
Prefetching certain pages onto your computer in advance.
Managing your Internet connection to reduce delays.
Compressing data before sending it to your computer.
3. Can I use Google Web Accelerator with a dial-up connection?

Dial-up users may not see much improvement, as Google Web Accelerator is currently optimized to speed up web page loading for broadband connections.

4. Does Google Web Accelerator speed up all web pages?

No, it doesn’t. For security reasons, Google Web Accelerator won’t speed up pages encrypted with the HTTPS: protocol (such as bank records pages). Also, Google Web Accelerator only speeds up web pages, not large data downloads such as MP3 and streaming video files.

5. How does using Google Web Accelerator affect my privacy?

Google Web Accelerator receives much of the same kind of information you currently send to your ISP when you surf the Web:

Google will receive your requests for unencrypted pages (those with “HTTP:”, not “HTTPS:”, at the beginning of the URL), along with information such as the date and time of the request, your IP address, and computer and connection information
If you enter personally identifiable information (such as an email address) onto a form on an unencrypted web page, some sites may send this information through Google. Whenever your computer sends cookies with browsing or prefetching page requests for unencrypted sites, we temporarily cache these cookies in order to improve performance
In order to speed up the display of pages generally, Google Web Accelerator may store copies of web pages, including prefetched pages that you did not visit, in the Google Web Accelerator cache on your machine. This is separate from your browser’s cache, which only identifies pages that you actually visited. You can empty your Google Web Accelerator cache at any time by following these instructions.
The policies for the Google Web Accelerator, like those for Google.com, uphold the highest level of integrity and respect for our users’ information. Google will never rent or sell a user’s personal information to third parties without a user’s explicit permission. To learn more about our privacy practices, please see the Google Web Accelerator Privacy Policy.

6. What are Google Web Accelerator’s system requirements?

To use Google Web Accelerator, your computer must have a Windows XP or Windows 2000 SP 3+ operating system. Google Web Accelerator works for the Internet Explorer 5.5+ or Firefox 1.0+ browsers.

7. Can I run Google Web Accelerator on a browser other than Internet Explorer or Firefox?

For other browsers running on Windows, you’ll need to manually configure your proxy settings to 127.0.0.1:9100 for HTTP connections.

8. What should webmasters and content providers know about Google Web Accelerator?

If you’re a webmaster or content provider interested in learning how Google Web Accelerator works with your site, please see our webmaster FAQ.