Web Unleashed 2015 #WebU
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How Slow Load Times Hurt Your Bottom Line презентация
Содержание
- 1. How Slow Load Times Hurt Your Bottom Line
- 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.
- 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
- 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’
- 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?
- 22. Know where your page weight is coming
- 25. @tameverts
- 26. Setting a performance budget http://timkadlec.com/2013/01/setting-a-performance-budget/ Performance budget metrics http://timkadlec.com/2014/11/performance-budget-metrics/ @tameverts
- 27. HTTP Archive, June 2015 @tameverts
- 28. @tameverts
- 29. Reformat Compress Defer/lazy load Adaptive images Auto-preloading Solutions @tameverts
- 30. Problem 2: Pages are too complex @tameverts
- 32. @tameverts
- 33. @tameverts
- 34. @tameverts
- 35. @tameverts
- 36. webpagetest.org
- 37. Monitor Consolidate page resources Make sure stylesheets
- 38. Third-party content can make up >50% of page requests @tameverts
- 39. Increase page weight Increase number of hosts
- 41. Defer scripts Use asynchronous versions (when
- 42. @tameverts
- 47. @tameverts performancebeacon.com
@tameverts performancebeacon.com
Слайд 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.”
Слайд 10Reduced average load time by 2.2 seconds and increased total downloads
by 15.4%
10 million additional downloads per year
@tameverts
Слайд 16Steve Souders, author, ‘High Performance Web Sites’
“80-90% of end-user response time
is
at the front end.
Start there.”
@tameverts
Слайд 20More bandwidth isn’t the answer
http://www.soasta.com/blog/more-bandwidth-isnt-a-magic-bullet-for-web-performance/
Слайд 21Single greatest indicator
of fast performance?
Faster pages are
less than 1MB
in size
@tameverts
Слайд 22Know where your page weight is coming from
Create a performance budget
Monitor,
monitor, monitor
Solutions
@tameverts
Слайд 26Setting a performance budget
http://timkadlec.com/2013/01/setting-a-performance-budget/
Performance budget metrics
http://timkadlec.com/2014/11/performance-budget-metrics/
@tameverts
Слайд 37Monitor
Consolidate page resources
Make sure stylesheets are in the document HEAD
Host your
fonts
Optimize your pop-up scripts
Optimize your pop-up scripts
Solutions
@tameverts
Слайд 39Increase page weight
Increase number of hosts and connections
Introduce additional latency
Prevent pages
from loading
Problems
@tameverts
Слайд 41Defer scripts
Use asynchronous versions
(when possible)
Know your scripts and their performance
penalties
Monitor constantly
Monitor constantly
Solutions
@tameverts
