DOCUMENT:Q150031 08-AUG-2001 [winnt] TITLE :Use of SSL Creates Performance Overhead for Browsers PRODUCT :Microsoft Windows NT PROD/VER::2.0,2000,3.0,4.0,5 OPER/SYS: KEYWORDS:kbnetwork kbusage ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 - Microsoft Windows NT Advanced Server, version 4.0 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Professional - Microsoft Internet Information Server versions 2.0, 3.0, 4.0 - Microsoft Internet Explorer version 5 for Windows 2000 - Microsoft Internet Explorer versions 4.0, 5 for Windows NT 4.0 ------------------------------------------------------------------------------- SUMMARY ======= The use of the Secure Sockets Layer (SSL) will slow performance between HTTP servers and browsers. MORE INFORMATION ================ If two HTTP web servers are developed with identical HTML, and SSL is applied to only one of the servers, the client browsers will experience a noticeable performance degradation when you browse the SSL web server. NOTE: Use encryption sparingly. The use of large bitmaps behind an SSL site should be used with discretion. Additional query words: prodiis iis implementation ====================================================================== Keywords : kbnetwork kbusage Technology : kbWinNTsearch kbWinNT400search kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTAdvSerSearch kbWinNTAdvServ400 kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbiisSearch kbIEsearch kbiis400 kbiis300 kbiis200 kbZNotKeyword2 kbIENT400Search kbIE500Search kbWinAdvServSearch kbZNotKeyword3 kbIE2000Search kbIE500Win2000 kbIE400WinNT400 kbIE500WinNT400 kbZnotKeyword7 Version : :2.0,2000,3.0,4.0,5 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.