Propel Accelerator Overview - ISP Connections

Propel Accelerator improves your subscriber's browsing experience by dramatically accelerating the delivery of Web pages to their computers. Our unique combination of persistent connections, intelligent browser caching, and compression technology enables Web pages to be delivered to user's browser with minimal latency at maximum speeds over their existing low-speed Internet connection. As a result, your subscribers can receive a very noticeable improvement in response time.

Low-speed Internet connections are those connections, regardless of technology, that Propel Accelerator measures at or below 400 kilobits in speed and includes Wi-fi (802.11), wireless mobile data, 1XRTT, GPRS/EDGE, ADSL, IDSL, satellite, cable and dial-up connections.

Propel Accelerator Architecture

The figure above depicts the relationships between the various components of the Propel Accelerator and how they interact with one another:

• The Propel Accelerator Client Software (or Propel Client) runs in the background on the user's computer as a local proxy. The Propel Client maintains a persistent connection to the Propel Network in order to eliminate the connections that need to be established every time the browser initiates a request. The Propel Client decodes and caches the content it receives from the Propel Network before sending it to the Web browser.
  
• The Propel Network sits between the Propel Client running on the user's computer and the Web sites they are trying to reach. The Propel Network consists of a collection of strategically deployed servers that manage connections and encode data received from the destination sites. By doing so, the Propel Network reduces the distance data must travel, and at the same time reduces the amount of data transmitted.

Methods of Acceleration for ISP Connection Speed

Propel Accelerator speeds up the delivery of Web pages in three ways:

• Compression. Propel delivers text and graphics more efficiently, using a patent-pending compression technology that allows for intelligent encoding of Web pages and page elements sent to the user's browser.
  
• Caching. Propel intelligently retains and re-uses Web pages and page elements that have previously been sent to the user's computer. That's why the longer Propel Accelerator is in use on the user's computer, the faster their Web pages will load.
  
• Persistent Connections. Propel uses proprietary techniques to carefully manage and optimize the communication between the user's modem and our servers using a persistent connection.
  

An Example of ISP Connection Speed

An easy way to understand what Propel Accelerator does is to consider a simplified example.

Using maximum graphics acceleration, a first-time visit to a Web page with Propel Accelerator will be up to 3 times faster, with an average first-time visit greater than 2x.

For example, the first time a user request the Amazon home page, the following events occur:

• The request for the Web page is automatically routed by the Propel Client to the Propel Network.
  
• The Propel Network retrieves the requested Web page from the Amazon Web site.
  
• Elements of the Web page (both text and graphics) are encoded and cached before being sent to the user's computer.
  
• These page elements are then decoded by the Propel Client, and assembled and delivered to the Web browser.

Subsequent visits to the same page will be up to 5 times faster.

The next time the user visits the Amazon home page (which may have changed since the last visit), the following events occur:

• Their request for the Web page is automatically routed by the Propel Client to the Propel Network.
  
• The Propel Network retrieves the requested Web page from the Amazon Web site. Having identified the page elements that had previously been retrieved in a prior visit, the Propel Network only compresses and transmits those components that have changed.
  
• Data already stored on the user's computer - plus any new decoded page elements - are assembled locally by the Propel Client and delivered to the Web browser.

Summary

Propel Accelerator is an Internet acceleration service for users on low-speed, or high latency Internet connections, that speeds up the delivery of static and dynamic Web pages across the entire Internet, including the last mile.

The service significantly improves a user's browsing experience, while remaining universally deployable and completely transparent to ISPs and destination sites.

ISP Connection & ISP Connection Speed: Use Propel Accelerator for an ISP high speed dial-up connection, ISP high speed wireless connection, satellite, cable, IDSL, ADSL, GPRS/EDGE, and 1XRTT high speed connections. ISPs offer the leading Internet accelerator service available for users of dial-up, wireless, and broadband connections.