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How Slow Load Times
Hurt Your Bottom Line
@tameverts Web Unleashed 2015 #WebU
@tameverts
performancebeacon.com
Do MOST people consider
page speed an important part
of user engagement?
“I myself wouldn’t consider it
very important. Granted, if a
page is too slow, it loses users,
but I believe if a page loa...
@tameverts
http://www.soasta.com/blog/web-performance-mothers-day/
http://www.soasta.com/blog/mobile-web-performance-monitoring-conversion-rate/
2% increase in conversions
for every 1 second
of improvement
@tameverts
Increased
conversions
by 9%
Cut load times in half
@tameverts
Reduced average load time by 2.2 seconds
and increased total downloads by 15.4%
10 million additional
downloads per year
@...
@tameverts
How do visitors feel
about slow sites?
(hint: not good)
@tameverts
@tameverts
17 things you can do
to deliver
a faster user experience
Steve Souders, author, ‘High Performance Web Sites’
“80-90% of end-user
response time is
at the front end.
Start there.”
@...
1 Page size
2 Page complexity
Two main performance problems
@tameverts
Problem 1: Pages are too big
@tameverts
@tameverts
More bandwidth isn’t the answer
http://www.soasta.com/blog/more-bandwidth-isnt-a-magic-bullet-for-web-performance/
Single greatest indicator
of fast performance?
Faster pages are
less than 1MB in size
@tameverts
Know where your page weight is
coming from
Create a performance budget
Monitor, monitor, monitor
Solutions
@tameverts
@tameverts
Setting a performance budget
http://timkadlec.com/2013/01/setting-a-
performance-budget/
Performance budget metrics
http:/...
HTTP Archive, June 2015
@tameverts
@tameverts
Reformat
Compress
Defer/lazy load
Adaptive images
Auto-preloading
Solutions
@tameverts
Problem 2: Pages are too complex
@tameverts
@tameverts
@tameverts
@tameverts
@tameverts
webpagetest.org
Monitor
Consolidate page resources
Make sure stylesheets are in the
document HEAD
Host your fonts
Optimize your pop-up scr...
Third-party content
can make up >50%
of page requests
@tameverts
Increase page weight
Increase number of hosts and
connections
Introduce additional latency
Prevent pages from loading
Prob...
Defer scripts
Use asynchronous versions
(when possible)
Know your scripts and their
performance penalties
Monitor constant...
@tameverts
@tameverts
performancebeacon.com
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)
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How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)

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There are many compelling arguments why companies need to care about serving faster web pages to their users. Countless studies have found an irrefutable connection between load times and key performance indicators ranging from page views to revenue. This talk covers the reasons why you need to care about web performance and what you can do to make your pages faster.

Publié dans : Technologie, Internet
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How Slow Load Times Hurt Your Bottom Line (And 17 Things You Can Do to Fix It)

  1. How Slow Load Times Hurt Your Bottom Line @tameverts Web Unleashed 2015 #WebU
  2. @tameverts performancebeacon.com
  3. Do MOST people consider page speed an important part of user engagement?
  4. “I myself wouldn’t consider it very important. Granted, if a page is too slow, it loses users, but I believe if a page loads in 5 or 6 seconds, it doesn’t make much difference.”
  5. @tameverts
  6. http://www.soasta.com/blog/web-performance-mothers-day/
  7. http://www.soasta.com/blog/mobile-web-performance-monitoring-conversion-rate/
  8. 2% increase in conversions for every 1 second of improvement @tameverts
  9. Increased conversions by 9% Cut load times in half @tameverts
  10. Reduced average load time by 2.2 seconds and increased total downloads by 15.4% 10 million additional downloads per year @tameverts
  11. @tameverts
  12. How do visitors feel about slow sites? (hint: not good)
  13. @tameverts
  14. @tameverts
  15. 17 things you can do to deliver a faster user experience
  16. Steve Souders, author, ‘High Performance Web Sites’ “80-90% of end-user response time is at the front end. Start there.” @tameverts
  17. 1 Page size 2 Page complexity Two main performance problems @tameverts
  18. Problem 1: Pages are too big @tameverts
  19. @tameverts
  20. More bandwidth isn’t the answer http://www.soasta.com/blog/more-bandwidth-isnt-a-magic-bullet-for-web-performance/
  21. Single greatest indicator of fast performance? Faster pages are less than 1MB in size @tameverts
  22. Know where your page weight is coming from Create a performance budget Monitor, monitor, monitor Solutions @tameverts
  23. @tameverts
  24. Setting a performance budget http://timkadlec.com/2013/01/setting-a- performance-budget/ Performance budget metrics http://timkadlec.com/2014/11/performanc e-budget-metrics/ @tameverts
  25. HTTP Archive, June 2015 @tameverts
  26. @tameverts
  27. Reformat Compress Defer/lazy load Adaptive images Auto-preloading Solutions @tameverts
  28. Problem 2: Pages are too complex @tameverts
  29. @tameverts
  30. @tameverts
  31. @tameverts
  32. @tameverts
  33. webpagetest.org
  34. Monitor Consolidate page resources Make sure stylesheets are in the document HEAD Host your fonts Optimize your pop-up scripts Solutions @tameverts
  35. Third-party content can make up >50% of page requests @tameverts
  36. Increase page weight Increase number of hosts and connections Introduce additional latency Prevent pages from loading Problems @tameverts
  37. Defer scripts Use asynchronous versions (when possible) Know your scripts and their performance penalties Monitor constantly Solutions @tameverts
  38. @tameverts
  39. @tameverts performancebeacon.com

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