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Web Performance ROI:A Brief History презентация
Содержание
- 1. Web Performance ROI:A Brief History
- 2. @tameverts performancebeacon.com
- 3. What people SAY they expect from their online experiences
- 6. How do we translate that to the business?
- 9. 2008 Does front-end performance matter?
- 11. Impact of a 1-second delay A site
- 12. 2009 Which business metrics does performance affect?
- 13. Shopzilla Sped up average page load
- 14. 2010 Should we care about slowdowns as much as outages?
- 15. Average revenue loss per hour of
- 16. …website slowdowns occur 10X more often than outages. Source: TRAC Research
- 17. 2011 Can we compare apples to apples?
- 18. Source: Strangeloop
- 19. Source: Strangeloop
- 20. 2012 What can we do with a LOT of user data?
- 21. 2% increase in conversions for every 1 second of improvement
- 22. Walmart also found… Overall, converted
- 23. Today What’s changed?
- 24. http://www.soasta.com/blog/mobile-web-performance-monitoring-conversion-rate/
- 25. But that’s not my site
- 28. Conversion rate barely decreases when load times for “checkout” pages degrade
- 29. Conversion rate shrinks by about 50%
- 31. Do you know how performance affects different pages on your site?
- 33. What is the Conversion Impact Score? The
- 34. TL;DR The Conversion Impact Score
- 35. Conversion Impact Score
- 36. http://www.soasta.com/blog/website-monitoring-conversion-impact-score/
- 37. We have more questions
- 38. Can we better measure how
- 40. http://soasta.io/perftimings
- 41. Takeaways
- 42. User expectations and behavior are always
- 43. Free download (until November 4) http://soasta.io/timeismoneybook
@tameverts
performancebeacon.com
Слайд 11Impact of a 1-second delay
A site that earns $100K per day
could lose $2.5M in sales in one year
Слайд 13Shopzilla
Sped up average page load time from 6s to 1.2s.
Experienced
a 12% increase in revenue and a 25% increase in page views.
Doubled the number of sessions from search engine marketing.
Cut the number of required servers in half.
Mozilla
Shaved 2.2s off landing page load times.
Increased download conversions by 15.4%.
Yahoo
Increased traffic by 9% for every 400 milliseconds of improvement.
AOL
Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile.
Doubled the number of sessions from search engine marketing.
Cut the number of required servers in half.
Mozilla
Shaved 2.2s off landing page load times.
Increased download conversions by 15.4%.
Yahoo
Increased traffic by 9% for every 400 milliseconds of improvement.
AOL
Visitors in the top ten percentile of site speed viewed 50% more pages than visitors in the bottom ten percentile.
Слайд 15Average revenue loss per hour
of downtime
Average revenue loss per hour
of performance degradation
(slower than 4.4s)
$21,000
$4,100
However…
Source: TRAC Research
Слайд 22Walmart also found…
Overall, converted shoppers were served pages
that were
2X faster than pages served to
non-converted shoppers.
Non-buyers were served category pages that were 2-3 seconds slower than category pages served to buyers.
For every 100 milliseconds of improvement, incremental revenue increased by up to 1%.
Non-buyers were served category pages that were 2-3 seconds slower than category pages served to buyers.
For every 100 milliseconds of improvement, incremental revenue increased by up to 1%.
Слайд 29Conversion rate shrinks by about 50% when load time for “browse”
pages
increases from 1 to 6 seconds
Слайд 33What is the Conversion Impact Score?
The Conversion Impact Score (CIS) is
a relative score that ranks page groups by their propensity to negatively impact conversions due to high load times. For each page group, the Conversion Impact Score is calculated using the proportion of overall requests that are associated with that group, along with the Spearman Ranked Correlation between its load times and number of conversions. The Conversion Impact Score will always be a number between -1 and 1, though scores much greater than zero should be very rare. The more negative the score, the more detrimental to conversions that high load times for that page group are, relative to the other page groups.
Слайд 34TL;DR
The Conversion Impact Score
answers this question:
How much impact
does
the performance of this page
have on conversions?
Слайд 38 Can we better measure how performance affects user satisfaction?
What impact does performance have
on customer lifetime value?
What impact does performance have
on enterprise productivity?
Are we always measuring the right things?
Слайд 42User expectations and behavior are always changing Our tools for measuring
ROI are evolving
Know your own business success metrics
Understand your own visitors
Target the best (not the slowest) pages for optimization
Monitor, test, repeat
