Solutions

www.google-analytics.com is causing web pages to load slowly or sometimes not load at all

Solutions ID:    KB3528
Version:    4.0
Status:    Published
Published date:    11/05/2009
Updated:    05/13/2010
 

Problem Description

 Client browser webpage loads slowly or get empty page.

The packet capture shows client GET http://www.google-analytics.com/ga.js in the same connection, then the ProxySG response with 1 byte by 1 byte.

Sample pcap:

Client IP: 10.1.1.1

ProxySG: 192.168.2.2

 

10.1.1.1 192.168.2.2 HTTP GET http://www.diovan.com/jsp/utils/include/menu_controls.js HTTP/1.1 611

192.168.2.2 10.1.1.1 HTTP HTTP/1.1 304 Not Modified 268

10.1.1.1 192.168.2.2 HTTP GET http://www.google-analytics.com/ga.js HTTP/1.1 441

192.168.2.2 10.1.1.1 HTTP HTTP/1.1 200 OK 1414

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 1414

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 1414

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 1414

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 1414

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 1269

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 1168

10.1.1.1 192.168.2.2 TCP 47973 > http-alt [ACK] Seq=1904628272 Ack=232516597 Win=65535 Len=0 64

10.1.1.1 192.168.2.2 TCP 47973 > http-alt [ACK] Seq=1904628272 Ack=232519317 Win=65535 Len=0 64

10.1.1.1 192.168.2.2 TCP 47973 > http-alt [ACK] Seq=1904628272 Ack=232521892 Win=65535 Len=0 64

10.1.1.1 192.168.2.2 TCP 47973 > http-alt [ACK] Seq=1904628272 Ack=232523006 Win=64421 Len=0 64

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 55 <-- response 1 byte

10.1.1.1 192.168.2.2 TCP 47973 > http-alt [ACK] Seq=1904628272 Ack=232523007 Win=64420 Len=0 64

192.168.2.2 10.1.1.1 HTTP Continuation or non-HTTP traffic 55 <-- response 1 byte

10.1.1.1 192.168.2.2 TCP 47973 > http-alt [ACK] Seq=1904628272 Ack=232523008 Win=64419 Len=0 64

 

 

Resolution

The issue is resolved in SGOS 5.3.3.4 PR 

The issue is also resolved in SGOS 5.4.2.2 and later.  If you are upgrading to SGOS 5.4.x, please upgrade to the latest version of SGOS 5.4.x.  You can download the SGOS 5.4.x code branch from https://bto.bluecoat.com/download/product/17 .  Please note that you will need a current support contract and a valid BTO login.  For information regarding BTO logins, please search the knowledge base for "bto login" (without quotes) and follow the appropriate instructions of the first search result.

Workaround:

  • Do not cache the google-analytics.com
  • Purge the cache
 

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