Errata

High Performance Web Sites

Errata for High Performance Web Sites

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted By Date submitted Date corrected
Printed
Page 139
throughout

add these to the index:
@import, 41
LINK tag, 41
SSL, 101

 Steve Souders
Steve Souders
 		 May 19, 2009 
Printed
Page 139
top

under "204 No Content status code", add "beacons, 82":
204 No Content status code
AOL, 113
beacons, 82

 Steve Souders
Steve Souders
 		 May 19, 2009 
Printed
Page 99
bullet list bottom half

use the correct chapter title:
Rule 13: Configure ETags

 Steve Souders
Steve Souders
 		 May 19, 2009 
Printed
Page 34
middle

change "Using" to "With":
With mod_gzip in Apache 1.3, a browser whitelist...

 Steve Souders
Steve Souders
 		 May 19, 2009 
Printed
Page 13
top

add this URL:
...are explained well in Dave Shea's authoritative article, "CSS Sprites: Image Slicing's Kiss of Death" (http://www.alistapart.com/articles/sprites/).

 Steve Souders
Steve Souders
 		 May 19, 2009 
Printed
Page 33
One but last sentence

By default, mod_gzip adds the Vary: Accept Encoding header [...]

should be:

By default, mod_gzip adds the Vary: Accept-Encoding header [...]

 Anonymous  Aug 23, 2008  Nov 01, 2008
Printed
Page 15
Table 1-1

http://www.bay.com should be http://www.ebay.com

 Anonymous  Aug 22, 2008  Nov 01, 2008
Printed
Page 54
3rd to last line of 1st paragraph

location fixed should be position fixed.

Note from the Author or Editor:
Change "location: fixed" to "position: fixed".

 Anonymous  Jul 10, 2008  Nov 01, 2008
Printed
Page 104
Diagram - Figure 15-1 and 15-2

Based upon the data on page 103, it looks like the labels in the graph at the top of page 104 are wrong -
"Response time" should be swapped with "Page Weight". The same is true of the diagram on page 105.

Note from the Author or Editor:
In Figure 15-1 and 15-2, the first two labels should be swapped (black line is Page weight, gray line is Response time).

 Anonymous