How the brain
reacts to a slow
corporate website
A presentation from KW Digital
Websites get heavier and
heavier
kB
Larger pictures
More videos
Heavier scripts
Average bytes used per
page, divided by type
Images
Scripts
Stylesheets
Flash
HTML
Other
Heavy pages
are slow
pages
People don’t like slow
57% leave a slow site
after waiting 3 seconds
78% have experienced stress
or anger with a slow site...
have thrown their mobile
phones away in anger
after experiencing a slow
website
Some people
really don’t
like slow 4%
We want you to be able to flick from
one page to another as quickly as
you can flick a page on a book. So
we’re really aim...
The average web page
loads in 4.9 sec
That’s 4,900 times
longer than Google’s goal
But Why are we
so impatient
Short time memory
A Jakob Nielsen study from 2010
shows that negative reactions on
slow websites are connected
to our
How your brain perceives page load times
10 sec
Keeps your
attention… Barely
2 4 6 8 10 12 13 140
0.1 sec
Feels instantane...
And all these distractions
sure don’t help
It’s not rocket
science. It’s
biology!
How the memory works
– simplified crash course
Sensor memory: Visual memory.
Deleted every 100 milli second
Short term mem...
When visiting a website, we use
different parts of our memory
your goal as a webmaster is to
Reduce the use of working mem...
So keep it simple
and fast
Less use of brain capacity to
figure out the interface and
getting upset over slow
websites, allows your visitor
to actual...
Be creative and make
beautiful websites
But not at the expense of
website speed
Because that’s also at the
expense of your...
Contact us if you want to know more
about speeding up your website.
Or read these 5 tips from our expert
Wezz Balk:
Or rea...
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How the brain reacts to a slow corporate website

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Websites just keep getting heavier and heavier today. Heavy pages are slow pages. And people don't like slow. Learn how the brain reacts to a slow corporate website, what the consequence are and how should you design your website to please your visitors.

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How the brain reacts to a slow corporate website

  1. 1. How the brain reacts to a slow corporate website A presentation from KW Digital
  2. 2. Websites get heavier and heavier kB
  3. 3. Larger pictures More videos Heavier scripts
  4. 4. Average bytes used per page, divided by type Images Scripts Stylesheets Flash HTML Other
  5. 5. Heavy pages are slow pages
  6. 6. People don’t like slow 57% leave a slow site after waiting 3 seconds 78% have experienced stress or anger with a slow site 50% feel that websites are slower now than five years ago
  7. 7. have thrown their mobile phones away in anger after experiencing a slow website Some people really don’t like slow 4%
  8. 8. We want you to be able to flick from one page to another as quickly as you can flick a page on a book. So we’re really aiming very, very high here… at something like 100 milliseconds. – Urs Hölzle, Senior VP Operations, Google
  9. 9. The average web page loads in 4.9 sec That’s 4,900 times longer than Google’s goal
  10. 10. But Why are we so impatient
  11. 11. Short time memory A Jakob Nielsen study from 2010 shows that negative reactions on slow websites are connected to our
  12. 12. How your brain perceives page load times 10 sec Keeps your attention… Barely 2 4 6 8 10 12 13 140 0.1 sec Feels instantaneous +10 sec Loses you 1 sec Lets you think seamlessly Based on a diagram from Strangeloop (http://thumbnails.visually.netdna-cdn.com/ThisIsYourBrainonaSlowWebsite_50abe136dc836_w1500.jpg)
  13. 13. And all these distractions sure don’t help
  14. 14. It’s not rocket science. It’s biology!
  15. 15. How the memory works – simplified crash course Sensor memory: Visual memory. Deleted every 100 milli second Short term memory: Stores information for 10-15 seconds, then it’s gone Working memory: Your brain’s Post-it notes and you only have a limited amount (Long-term memory: Not relevant in this case)
  16. 16. When visiting a website, we use different parts of our memory your goal as a webmaster is to Reduce the use of working memory. Appeal to the sensor memory.
  17. 17. So keep it simple and fast
  18. 18. Less use of brain capacity to figure out the interface and getting upset over slow websites, allows your visitor to actually focus on your website. Not get distracted.
  19. 19. Be creative and make beautiful websites But not at the expense of website speed Because that’s also at the expense of your visitors In a nutshell
  20. 20. Contact us if you want to know more about speeding up your website. Or read these 5 tips from our expert Wezz Balk: Or read this Next move
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