Keynote Introduces New Web Measurements

Keynote Systems, Inc. Wednesday announced a new version
of its Keynote Perspective service, designed to provide e-commerce sites and
Web hosting companies with performance and availability measurements and
diagnostics for Web page downloads and multi-page transactions.

Keynote Perspective 4.0 provides several new features:

  • Cache Measurement — Web site owners can quantify the benefit of
    transparent cache servers by comparing the performance of pages
    downloaded from a cache server to the performance of the same pages
    downloaded directly from the original content server. Service providers
    can use this information to determine if they want to invest in cache
    technology and Web site owners can determine if they are receiving a
    significant benefit from cache servers on the Internet.

  • Instant Perspective — Instant Perspective displays a graphical
    timeline showing when every part of a web page downloads. A graph
    displays exactly when each image is downloaded and indicates bottlenecks
    such as missing components or slow third-party ad servers. Additionally,
    a one-time Instant Perspective of any Web site’s performance is now
    available free of charge through Keynote’s new Lifeline service. Keynote
    Lifeline can be found at

  • AccuStat– A statistical technique for analyzing the average
    download time of a Web page or the execution of a multi-step online
    transaction. AccuStat uses a weighted average or “mean of medians” to
    provide an analysis of the typical performance that end users in the
    United States experience when downloading Web pages or executing

  • Error-Based Alarms — An expanded error-alarm capability notifies
    Web administrators automatically by pager or e-mail of error conditions
    such as DNS outages or missing Web page components that do not slow
    performance but prevent end-user access to the Web site.

Perspective 4.0 is available at Pricing is $295
per URL per month for measurement service from 10 U.S. cities, $495 from
25 U.S. cities and $695 from 35 cities including 10 cities outside the
United States.

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