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From...

Behind the numbers: Browser market share

October 8, 1998
Web posted at: 10:10 AM EDT

by Maryann Jones Thompson

(IDG) -- The Netscape-Microsoft browser battle has been scored by at least four different research firms. All have concluded that Netscape's share on the market is slipping, but each firm took a slightly different snapshot of the market.

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ADKNOWLEDGE

  1/98 3/98 6/98
Netscape 61% 57% 52%
Microsoft 36% 42% 46%

Measures

  • Browser used to view Web banner ads.

    Method

  • AdKnowledge's servers gathered data from a one-day sample of 10 million ads served across more than 1,000 sites.

    Distinction

  • Includes multiple usage by the same user, usage of more than one browser type and international usage.


    INTERNATIONAL DATA CORP.

      1996 1997
    Netscape 55% 51%
    Microsoft 16% 23%

    Measures

  • Primary browser used by U.S. PCs installed in home, business, government and education markets.

    Method

  • IDC conducted a telephone survey of 100 to 300 randomly selected respondents in each segment. Results were compiled and projected to the total U.S. figure.

    Distinction

  • Doesn't measure usage of one person in multiple markets or usage of more than one browser.


    ZD MARKET INTELLIGENCE

      1/97 1/98
    Netscape 63% 54%
    Microsoft 21% 39%

    Measures

  • Browsers used on U.S. PCs.

    Method

  • A mail survey of 17,500 PC-using households obtained data on home and workplace browser use and projected the findings to total U.S. households and total installed base of PCs.

    Distinction

  • Includes all browsers used: 13 percent of PCs use both Netscape and Microsoft browsers.


    ZONA RESEARCH

      1/97 9/97 7/98
    Netscape 70% 62% 54%
    Microsoft 28% 36% 45%

    Measures

  • Primary browser used among U.S. companies with over 20 employees.

    Method

  • An online survey asked 250 computer professionals from the IntelliQuest Technology Panel which browser was primarily used at their companies.

    Distinction

  • Data not projected; reflects percentage of respondents who say their company uses a particular browser. One respondent speaks for entire company.

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