This page lists unconfirmed errors and comments from readers.
They have not yet been approved or disproved by the author or 
editor and represent solely the opinion of the reader.

High Performance Web Sites, 1e
by Steve Souders

The catalog page for this title is http://www.oreilly.com/catalog/9780596529307/

This page was last updated August 5, 2008.

If you have technical questions or error reports, you can send them to
booktech@oreilly.com.  Please specify the printing date of your copy
or the digital version accessed.

Here's a key to the markup:
	[page-number]: serious technical mistake
	{page-number}: minor technical mistake
	<page-number>: important language/formatting problem
	(page-number): language change or minor formatting problem


UNCONFIRMED errors and comments from readers:


[10]

The PDF version of the book isn't final version of the book. Lot of information is missing within tables 
and lot of pictures are missing too....


[30] 2nd paragraph;
While comparing gzip and deflate, the paragraph states: "The only other compression format you’re likely to 
see is deflate, but it’s slightly less effective and much less popular.".

This is incorrect. Both gzip (RFC 1952) and deflate (actually zlib RFC 1950) are based on the exact same 
algorithm (deflate, RFC 1951). The zlib header is smaller than the gzip header, so in theory zlib (deflate) 
would be the better one.

I suggest dropping the reference to which one is the most effective, and also re-wording the paragraph so 
that the compression methods are not presented as being two different beasts, when they are actually based 
on the same algorithm.

Note that this errata is based on the sample chapter available online, since I do not have a copy of the 
book. For more details, see my comment in the slashdot book review: http://books.slashdot.org/comments.pl?
sid=323905&cid=20937393


{49} 9.3 Conclusion: 1st Paragraph;
"To fully address complicated CSS incompatibilities such as min-width and location: fixed, is beyond the 
scope of this book."

"location: fixed" is not a CSS attribute, "position: fixed" would be the correct attribute.


{54}3rd to last line of 1st paragraph;
location fixed should be position fixed.


(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.