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	<title>High Performance Web Sites</title>
	<link>http://www.stevesouders.com/blog</link>
	<description>Essential knowledge for making your web pages faster.</description>
	<lastBuildDate>Fri, 23 Jul 2010 07:38:14 +0000</lastBuildDate>
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	<item>
		<title>Redirect caching deep dive</title>
		<description><![CDATA[I was talking to a performance guru today who considers redirects one of the top two performance problems impacting web pages today. (The other was document.write.) I agree redirects are an issue, so much so that I wrote a chapter on avoiding redirects in High Performance Web Sites. What makes matters worse is that, even [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/23/redirect-caching-deep-dive/</link>
			</item>
	<item>
		<title>Velocity: TCP and the Lower Bound of Web Performance</title>
		<description><![CDATA[John Rauser (Amazon) was my favorite speaker at Velocity. His keynote on Creating Cultural Change was great. I recommend you watch the video.
John did another session that was longer and more technical entitled TCP  and the Lower Bound of Web Performance. Unfortunately this wasn&#8217;t scheduled in the videotape room. But yesterday Mike Bailey contacted [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/13/velocity-tcp-and-the-lower-bound-of-web-performance/</link>
			</item>
	<item>
		<title>Velocity: Forcing Gzip Compression</title>
		<description><![CDATA[
Tony Gentilcore was my officemate when I first started at Google. I was proud of my heritage as &#8220;the YSlow guy&#8221;. After all, YSlow was well over 1M downloads. After a few days I found out that Tony was the creator of Fasterfox &#8211; topping 11M downloads. Needless to say, we hit it off and [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/12/velocity-forcing-gzip-compression/</link>
			</item>
	<item>
		<title>Mobile cache file sizes</title>
		<description><![CDATA[Mobile is big, but knowledge about how to make a mobile web site fast is lacking. The state of mobile web performance is in a similar place as desktop was six years ago when I started my performance deep dive. How many of us are happy with the speed of web pages on mobile? (I&#8217;m [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/12/mobile-cache-file-sizes/</link>
			</item>
	<item>
		<title>Diffable: only download the deltas</title>
		<description><![CDATA[There were many new products and projects announced at Velocity, but one that I just found out about is Diffable. It&#8217;s ironic that I missed this one given that it happened at Velocity and is from Google. The announcement was made during a whiteboard talk, so it didn&#8217;t get much attention. If your web site [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/09/diffable-only-download-the-deltas/</link>
			</item>
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		<title>Velocity: Google Maps API performance</title>
		<description><![CDATA[Several months ago I saw Susannah Raub do an internal tech talk on the performance improvements behind Google Maps API v3. She kindly agreed to reprise the talk at Velocity. Luckily it was videotaped, and the slides (ODP) are available, too. It&#8217;s a strong case study on improving performance, is valuable for developers working with [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/07/velocity-google-maps-api-performance/</link>
			</item>
	<item>
		<title>Velocity: Top 5 Mistakes of Massive CSS</title>
		<description><![CDATA[Nicole Sullivan and Stoyan Stefanov had the #3 highest rated session at Velocity &#8211; The  Top 5 Mistakes of Massive CSS. Nicole (aka, &#8220;stubbornella&#8221;) wrote a blog post summarizing their work. The motivator for paying attention to CSS are these stats that show how bad things are across the Alexa Top 1000:

42% don’t GZIP [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/03/velocity-top-5-mistakes-of-massive-css/</link>
			</item>
	<item>
		<title>Back to blogging after Velocity</title>
		<description><![CDATA[The last few weeks have been hectic. I was in London and Paris for 10 days. I returned a day before Velocity started. Most of you experienced or have heard about the awesomeness that was Velocity &#8211; great speakers, sponsors, and attendees. Right after Velocity I headed up to Foo Camp at O&#8217;Reilly HQ. This [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/07/02/back-to-blogging-after-velocity/</link>
			</item>
	<item>
		<title>Velocity wrap-up</title>
		<description><![CDATA[Velocity ended yesterday at 6pm &#8211; and the final presentations from 5:20-6:00 were still packed! It was a great conference. I&#8217;m wiped out from talking web performance from 8am to 10pm the last three days.
The highlight of the conference was the conference itself:

1200 attendees
89 speakers
28 sponsors
26 exhibitors

Compare that to the numbers for Velocity 2008: 600 [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/06/25/velocity-wrap-up-2/</link>
			</item>
	<item>
		<title>Velocity is coming fast June 22-24</title>
		<description><![CDATA[Jesse Robbins and I co-chair Velocity &#8211; the web performance and operations conference run by O&#8217;Reilly. This year&#8217;s Velocity is coming fast (get it?) &#8211; June 22-24 at the Santa Clara Convention Center. This is the third year for Velocity. The first two years sold out, and this year is looking even stronger. We&#8217;ve added [...]]]></description>
		<link>http://www.stevesouders.com/blog/2010/06/04/velocity-is-coming-fast-june-22-24/</link>
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