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2009
Microsoft IIS vs. Apache / Who
       Serves More?
           - A study
                Vijay Prasad Gupta
                ECM/Web Architect
Purpose of the Study

• Back in 2007, Microsoft-IIS used to serve 50% of the
  Top 20 Fortune companies (Reference: 1)

• This study was aimed to find how this has changed in
  the last two years

• The study was conducted using Firefox 3.0.11 and
  LiveHTTPHeaders (A firefox extension) to view HTTP
  Response Headers of each of the 20 website to find out
  what web server they are using (Reference: 2)
Web servers of the top 20 Fortune 500
        companies for 2009
  Rank               Company                                Web Server
     1   Exxon Mobil                        Microsoft-IIS 6.0
     2   Wal-Mart Stores                    Microsoft-IIS/6.0
     3   Chevron                            Microsoft-IIS/6.0
     4   ConocoPhillips                     Microsoft-IIS/6.0
     5   General Electric                   Sun-ONE-Web-Server/6.1
     6   General Motors                     Sun-ONE-Web-Server/6.1
     7   Ford Motor                         IBM_HTTP_Server/6.1.0.21 Apache/2.0.47
     8   AT&T                               Apache
     9   Hewlett-Packard                    Apache
    10   Valero Energy                      Microsoft-IIS/6.0
    11   Bank of America Corp.              Sun-ONE-Web-Server/6.1
    12   Citigroup                          Unknown
    13   Berkshire Hathaway                 Microsoft-IIS/6.0
    14   International Business Machines    IBM_HTTP_Server
    15   McKesson                           Microsoft-IIS/6.0
    16   J.P. Morgan Chase & Co.            Apache
    17   Verizon Communications             Apache
    18   Cardinal Health                    Microsoft-IIS/6.0
    19   CVS Caremark                       Apache
    20   Procter & Gamble                   Apache

                       * Top 20 Fortune List: Reference 3
Graph showing the web servers of the top
  20 Fortune 500 companies for 2009
                Web Server of Top 20 Fortune 500 Companies (2009)




                        5%
          10%




                                                                    40%
    15%

                                                                          Microsoft-IIS
                                                                          Apache
                                                                          Sun-ONE-Web-Server
                                                                          IBM_HTTP_Server
                                                                          Unknown




                 30%
Study Results

• The data shows that though Microsoft IIS still serves the
  majority of Fortune 20 companies in 2009, but it’s share
  have declined by 20% (It came down from 10 to 8)

• On the other hand, Apache have gained the share by
  100% (It has increased from 3 to 6). This is consistent
  with the overall trends towards open source and
  adoption of LAMP technologies. Note that Apache has
  increased its share at the expense of both Microsoft IIS
  and IBM HTTP Server

• Sun one has maintained its position as-is
References

1.   Microsoft IIS vs. Apache / Who Serves More? (2007):
     http://www.search-this.com/2007/06/27/microsoft-iis-vs-apache-
     who-serves-more/

2.   LiveHTTPHeaders: http://livehttpheaders.mozdev.org/


3.   Fortune 500 List 2009:
     http://money.cnn.com/magazines/fortune/fortune500/2009/full_list/

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2009 - Microsoft IIS Vs. Apache - Who Serves More - A Study

  • 1. 2009 Microsoft IIS vs. Apache / Who Serves More? - A study Vijay Prasad Gupta ECM/Web Architect
  • 2. Purpose of the Study • Back in 2007, Microsoft-IIS used to serve 50% of the Top 20 Fortune companies (Reference: 1) • This study was aimed to find how this has changed in the last two years • The study was conducted using Firefox 3.0.11 and LiveHTTPHeaders (A firefox extension) to view HTTP Response Headers of each of the 20 website to find out what web server they are using (Reference: 2)
  • 3. Web servers of the top 20 Fortune 500 companies for 2009 Rank Company Web Server 1 Exxon Mobil Microsoft-IIS 6.0 2 Wal-Mart Stores Microsoft-IIS/6.0 3 Chevron Microsoft-IIS/6.0 4 ConocoPhillips Microsoft-IIS/6.0 5 General Electric Sun-ONE-Web-Server/6.1 6 General Motors Sun-ONE-Web-Server/6.1 7 Ford Motor IBM_HTTP_Server/6.1.0.21 Apache/2.0.47 8 AT&T Apache 9 Hewlett-Packard Apache 10 Valero Energy Microsoft-IIS/6.0 11 Bank of America Corp. Sun-ONE-Web-Server/6.1 12 Citigroup Unknown 13 Berkshire Hathaway Microsoft-IIS/6.0 14 International Business Machines IBM_HTTP_Server 15 McKesson Microsoft-IIS/6.0 16 J.P. Morgan Chase & Co. Apache 17 Verizon Communications Apache 18 Cardinal Health Microsoft-IIS/6.0 19 CVS Caremark Apache 20 Procter & Gamble Apache * Top 20 Fortune List: Reference 3
  • 4. Graph showing the web servers of the top 20 Fortune 500 companies for 2009 Web Server of Top 20 Fortune 500 Companies (2009) 5% 10% 40% 15% Microsoft-IIS Apache Sun-ONE-Web-Server IBM_HTTP_Server Unknown 30%
  • 5. Study Results • The data shows that though Microsoft IIS still serves the majority of Fortune 20 companies in 2009, but it’s share have declined by 20% (It came down from 10 to 8) • On the other hand, Apache have gained the share by 100% (It has increased from 3 to 6). This is consistent with the overall trends towards open source and adoption of LAMP technologies. Note that Apache has increased its share at the expense of both Microsoft IIS and IBM HTTP Server • Sun one has maintained its position as-is
  • 6. References 1. Microsoft IIS vs. Apache / Who Serves More? (2007): http://www.search-this.com/2007/06/27/microsoft-iis-vs-apache- who-serves-more/ 2. LiveHTTPHeaders: http://livehttpheaders.mozdev.org/ 3. Fortune 500 List 2009: http://money.cnn.com/magazines/fortune/fortune500/2009/full_list/