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.

1. How the brain
reacts to a slow
corporate website
A presentation from KW Digital

2. Websites get heavier and
heavier
kB

3. Larger pictures
More videos
Heavier scripts

4. Average bytes used per
page, divided by type
Images
Scripts
Stylesheets
Flash
HTML
Other

5. Heavy pages
are slow
pages

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. have thrown their mobile
phones away in anger
after experiencing a slow
website
Some people
really don’t
like slow 4%

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. The average web page
loads in 4.9 sec
That’s 4,900 times
longer than Google’s goal

10. But Why are we
so impatient

11. Short time memory
A Jakob Nielsen study from 2010
shows that negative reactions on
slow websites are connected
to our

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. And all these distractions
sure don’t help

14. It’s not rocket
science. It’s
biology!

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. 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. So keep it simple
and fast

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. 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. 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