What it means to be fast in your industry

What it means to be fast inyour industry@AloisReitbauer

General definition of fast

Websites should load in 2 to 4 seconds

Is delivering pages at Google speed realistic?

Does performance depend on the industry?

First Impression Time 1.6US Retail 1.0 3.8 1.4 US Media 1.0 7.3 1.5 US Travel 1.1 5.38

First Impression Times is about 1.5 seconds across industries for the top 509

Total Page Load Time 5.6US Retail 4.3 15.4 7.3 US Media 4.4 23.0 4.8 US Travel 3.5 11.410

Total Load Times show a big difference11

Where does it come from?

JavaScript Execution Time 2.1US Retail 1.3 6.3 2.4 US Media 1.1 10.4 1.6 US Travel 0.5 5.213

Media Sites areJavaScript heavy

Content Size 626 kBUS Retail 350 kB 1.6 MB 861 kB US Media 330 kB 3.8 MB 405 kB US Travel 240 kB 2.1 MB15

Top pages are less than 350 kB

Number of Resources 92US Retail 68 238 114 US Media 64 278 74 US Travel 59 16017

Most pages need more than 60 resources

Content Transfer Time 3.3US Retail 1.8 9.5 4.7 US Media 2.5 19.8 3.2 US Travel 1.7 10.619

Page Lifecycle Time Loss 1.4 3.7US Retail 4.1 1.4 4.8 US Media 7.3 1.5 3.9 US Travel 4.8 First Impression OnLoad Event Fully Loaded20

Let’s look at thedifferences within industries

US Media Site Comparison

Comparison by Numbers msn.com cbsnews.comFirst Impression 0.9 1.7Total Load 3.4 15.6JavaScript 2.2 8.9Content Size 238 1906Transfer Time 3.0 8.0Requests 77 213Server Time 2.6 25.125

The User Perspective26

US Retail Site Comparison

Comparison by Numbers overstock.com barnesandnoble.comFirst Impression (1.3 sec) 0.6 1.7Total Load (5.0 sec) 4.0 14.3JavaScript (2.1 sec) 1.0 10.1Content Size (639.4 kB) 268.7 1.273Transfer Time (3.2 sec) 2.4 4.7Requests (64) 52 238Server Time (2.3 sec) 3.3 2.830

The User Perspective 31

US Travel Site Comparison

Comparison by Numbers tripmama.com priceline.comFirst Impression 0.4 0.9Total Load 1.6 4.9JavaScript 0.4 1.8Content Size 245 211.9Transfer Time 1.8 1.5Requests 59 114Server Time 0.4 3.235

The User Perspective

Industry specific KPI Monitoring

Competitive Performance Analytics

Detailed Performance Data 40

Conclusion

Travel Sitesare the fastest

Super fast pages share the same characteristics

Big differenceswithin sites of an industry

Alois Reitbauer @Alois Reitbaueralois.reitbauer@compuware.com http://blog.dynatrace.com 45

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What it means to be fast in your industry

by Alois Reitbauer on Jun 22, 2012

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