What it means to be fast in your industry

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How fast does a web page need to be in a certain industry. Learn about the characteristics of retail, travel and media sites. See what makes them fast or slow.

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What it means to be fast in your industry

  1. 1. What it means to be fast inyour industry@AloisReitbauer
  2. 2. General definition of fast
  3. 3. Websites should load in 2 to 4 seconds
  4. 4. 4
  5. 5. vs.5
  6. 6. Is delivering pages at Google speed realistic?
  7. 7. Does performance depend on the industry?
  8. 8. 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
  9. 9. First Impression Times is about 1.5 seconds across industries for the top 509
  10. 10. 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
  11. 11. Total Load Times show a big difference11
  12. 12. Where does it come from?
  13. 13. 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
  14. 14. Media Sites areJavaScript heavy
  15. 15. 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
  16. 16. Top pages are less than 350 kB
  17. 17. Number of Resources 92US Retail 68 238 114 US Media 64 278 74 US Travel 59 16017
  18. 18. Most pages need more than 60 resources
  19. 19. 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
  20. 20. 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
  21. 21. Let’s look at thedifferences within industries
  22. 22. US Media Site Comparison
  23. 23. 23
  24. 24. 24
  25. 25. 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
  26. 26. The User Perspective26
  27. 27. US Retail Site Comparison
  28. 28. 28
  29. 29. 29
  30. 30. 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
  31. 31. The User Perspective 31
  32. 32. US Travel Site Comparison
  33. 33. 33
  34. 34. 34
  35. 35. 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
  36. 36. The User Perspective
  37. 37. 37
  38. 38. Industry specific KPI Monitoring
  39. 39. Competitive Performance Analytics
  40. 40. Detailed Performance Data 40
  41. 41. Conclusion
  42. 42. Travel Sitesare the fastest
  43. 43. Super fast pages share the same characteristics
  44. 44. Big differenceswithin sites of an industry
  45. 45. Alois Reitbauer @Alois Reitbaueralois.reitbauer@compuware.com http://blog.dynatrace.com 45
  46. 46. 46 © 2011 Compuware Corporation — All Rights Reserved

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