1. Fast is a
Feature

2. 11 mentions of speed in
Apple iPhone 6 keynote

8. What does this mean for
mobile journalism?

9. You have less than
10 seconds
“A 10-second delay will often make
users leave a site immediately.”
- Jakob Nielsen

10. On mobile you have
1 second
“Our research says page load times
above one second interrupt user flow
of thought.”
- Google

11. Put something on the
screen
in 1 second

12. 1000 ms
- 200 ms of 3G network latency
- 200 ms of domain name lookup
- 200 ms of HTTP request loop
400 ms

13. You really only have
400 milliseconds

14. Average site load
on mobile is
7 seconds

15. Text
Images
Video
Interactives
Context
Ads
3rd party buttons (social)
‘Read more’
Comments

16. Easy, just build a
native app

17. native apps are fast
but hard to find

18. Search
20% of Google searches are on mobile
Google tracks page load time and uses it as
a signal

19. Social
Is
Mobile
is
Social In-App Browsers

20. Facebook thinks your
pages are too slow…
and they’ll be happy to
host your content!

21. Making data-informed
trade-offs
(building products)

22. How fast is Vox Media on
mobile?
Never fast enough

23. 15 seconds
first load
9 seconds
repeat load
-webpagetest.org

24. 5 seconds first
load
1 second
repeat load
-webpagetest.org

25. Performance Dashboard
Make speed a company-wide
metric like
unique visitors

27. Inline Performance Metrics
Measure. Optimize. Test.

29. Dedicated performance
team:
3 engineers

30. Fast Cars
Need Good Drivers
Speed isn’t just about
technology, it’s about being
quick to deliver the news

31. Thanks!
Trei Brundrett
Chief Product Officer
Vox Media
@clockwerks