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Propel® Accelerator improves your
browsing experience by dramatically accelerating the delivery
of Web pages to your PC. Our unique combination of intelligent
browser caching, compression technology, and edge caching
enables Web pages to be delivered to your browser with minimal
latency at maximum speeds over your existing dial-up
connection. As a result, you can expect a very noticeable
improvement in response time.
Propel® Accelerator Architecture
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Info
The figure above depicts the relationships between the various
components of the Propel® Acceleration Service and
how they interact with one another:
- The Propel Accelerator Client Software (or Propel
Client) runs in the background on your PC 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 your PC and the Web sites you are trying to
reach. The Propel Network consists of a collection of
strategically deployed servers that manage connections,
cache content, 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
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 your browser.
- Caching. Propel intelligently retains and re-uses
Web pages and page elements that have previously been sent
to your PC. That's why the longer Propel Accelerator is in
use on your PC, the faster your Web pages will load.
- Persistent Connections. Propel uses proprietary
techniques to carefully manage and optimize the
communication between your modem and our servers using a
persistent connection.
The table below shows some popular Web site pages and the
range of acceleration you should expect to see from Propel
Accelerator. These numbers were obtained using the Propel
Accelerator Performance Test Tool.
| Popular
Web Sites |
*Before
Propel® |
*With
Propel |
How
much Faster
with Propel? |
| Ebay |
11.65 seconds |
2.97 seconds |
3.92
X faster! |
| USA
Today |
32.43
seconds |
3.77
seconds |
8.60
X faster! |
| Mapquest.com |
30.56 seconds |
5.01 seconds |
6.10
X faster! |
| Monster.com |
11.74
seconds |
3.04
seconds |
3.86
X faster! |
| CNN |
11.68 seconds |
2.26 seconds |
5.17
X faster! |
| *Average time calculated
based on loading the home page. First time visit to a
Web page loads on average 2 times faster. Subsequent
visits to the page load, on average, 3 times faster. |
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An Example
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 you 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 your PC.
- 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 you visit the Amazon home page (which may have
changed since the last visit), the following events occur:
- Your 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 changed.
- Data already stored on your PC - 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
dial-up users 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.
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