SlideShare a Scribd company logo
Fast Fashion…
How Missguided revolutionised their
approach to site performance
Mark Leach, Missguided
Andy Davies, Eggplant
DeltaV Conf, May 2018
Mark Leach
Missguided
@AndyDavies
Eggplant
**** ****
*****
In the beginning…
Conversions
What if we improved our sites speed
April 2017
Android MedianiOS Median
Base of good practices already in place
Using HTTP/2 and CDN
Compression enabled for text resources (& minification)
Images optimised using a specialised service
Responsive images
Bundling assets
The early fixes
<link rel="preload" href="https://static.missguided.co.uk/skin/
frontend/mgresponsive/default/fonts/missguided/missguided-bold.woff2"
as="font" type="font/woff2" crossorigin>
<link rel="preload" href="https://static.missguided.co.uk/skin/
frontend/mgresponsive/default/fonts/missguided/missguided-
light.woff2" as="font" type="font/woff2" crossorigin>
Pre-loading fonts speeds up rendering
Browser
downloads fonts
before render tree is built
=
faster rendering
Homepage images
received but page hasn’t
started rendering yet
What’s delaying rendering?
Optimizely was very chatty
June 2017
Android MedianiOS Median
Summer 2017
Proving the value of performance
⭐⭐⭐⭐⭐
Customers love reviews
But some review services can have
a large impact on performance
MedianPageLoadTime(s)
0
2
4
6
8
10
12
14
W
eek
0
W
eek
1
W
eek
2
W
eek
3
W
eek
5
W
eek
5
Android
iOS
So what happens when you remove it?
MedianPageLoadTime(s)
0
2
4
6
8
10
12
14
W
eek
0
W
eek
1
W
eek
2
W
eek
3
W
eek
5
W
eek
5
Android
iOSRemoved for Android
visitors only
So what happens when you remove it?
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Effect on Android revenue
0%
25%
50%
75%
100%
125%
150%
175%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Week 0
Week 9
Page Load Time (avg across session)
CumulativeRevenuevsWeek0
Android revenue increased week-on-week
+ 56%
Nothing
stays still in
retail!
-4s
£+26%
(Baselined against other platforms
August 2017
Android MedianiOS Median
https://www.flickr.com/photos/rs_butner/7505567608
Winter 2017
“Can we make it to three seconds?”
Assembled a performance team
https://www.flickr.com/photos/soldiersmediacenter/7112630285
Working? Useful? Usable?
Focused on reducing time to useful and usable
Especially rendering
delays
https://www.flickr.com/photos/poetatum/3457696479
No magic go faster button
https://www.flickr.com/photos/colleenmorgan/2721589361
“Frontend Performance Archaeology”
Katie Sylor-Miller
Visualising JavaScript and CSS bundles can be a
great conversation starter
Visualising JavaScript and CSS bundles can be a
great conversation starter
“How much of
this is used?”
Visualising JavaScript and CSS bundles can be a
great conversation starter
“How much of
this is used?”
“Suspect we can
remove this”
Visualising JavaScript and CSS bundles can be a
great conversation starter
Shrunk download size of core
script bundle by 42%
(uncompressed size by 55%)
Performance Improvements were mostly dull,
boring stuff
Removing unused / un-needed code
Removing duplicate styles
Replacing social media libraries with ordinary links
Moving 3rd party libraries onto Missguided domain
Adding Resource Hints - preconnect, dns-prefetch
Defering loading until later where possible
Cleaned up Optimizely
Switched to Optimizely to use jQuery on the page
rather than bundled version
Removed A/A tests (were being used as Hotfixes)
Stripped out duplicate plugins, experiments for other
environments, and expired ones
https://www.flickr.com/photos/derekbruff/9759290413
There were a few bumps along the way
<picture>
<source type="image/webp" srcset="foo.webp">
<source type="image/jp2" srcset="foo.jp2">
<img src="foo.jpg">
</picture>
picture element enables format selection
<picture>
<source type="image/webp" srcset="foo.webp">
<source type="image/jp2" srcset="foo.jp2">
<img src="foo.jpg">
</picture>
picture element enables format selection
Browsers that
support webp
<picture>
<source type="image/webp" srcset="foo.webp">
<source type="image/jp2" srcset="foo.jp2">
<img src="foo.jpg">
</picture>
picture element enables format selection
Browsers that
support
jpeg2000
<picture>
<source type="image/webp" srcset="foo.webp">
<source type="image/jp2" srcset="foo.jp2">
<img src="foo.jpg">
</picture>
picture element enables format selection
Everything else
https://bugs.webkit.org/show_bug.cgi?id=179231
It’s a Safari pre-loader bug!
The `type` attribute in <source> tags are ignored by the preloader. A common pattern is to use the
<source> tag for content negotiation selection to specify webp for chrome and jp2 for safari. For
example:
<picture>
<source type="image/webp" srcset="foo.webp">
<source type="image/jp2" srcset="foo.jp2">
<img src="foo.jpg">
</picture>
However, the HTMLPreloadScanner only considers the media query when selecting (or not) the
appropriate <source> element. As a result the preloader greedily selects the foo.webp and then later
requests the correct foo.jpg. It should also evaluate the `type` attribute.
Optimizely snippet got larger (temporarily)
While switching out Optimizely’s jQuery some
extensions needed to be duplicated
This made the bundle larger and slower until the
migration was completed
So where are we now?
April 2017
Android MedianiOS Median
June 2017
Android MedianiOS Median
August 2017
Android MedianiOS Median
April 2018 – HUGE improvement over 12 months
April 2018 – HUGE improvement over 12 months
Android MedianiOS Median
What did we learn?
Linking revenue increases to performance
improvements is still hard…
Many other factors to account for including:
Pricing
Promotions
New brands
Trends
Seasonality
etc.
Optimizely needs careful management
Easy to blow-up the script size
Optimizely are working on features to help
They also capture performance data and will share
Perseverance Pays
Where next?
Add performance monitoring to build process
Further Optimizely improvements
Move experiments into React front-end and use
Optimizely for feature flags
Did we make it to 3 seconds?
Over May bank holiday weekend
median was just above 3.5s
Thank You!
https://www.slideshare.net/andydavies
Fast Fashion… How Missguided revolutionised their approach to site performance - DeltaV Conference - May 2018

More Related Content

Similar to Fast Fashion… How Missguided revolutionised their approach to site performance - DeltaV Conference - May 2018

MeasureWorks - Design for Fast Experiences
MeasureWorks - Design for Fast ExperiencesMeasureWorks - Design for Fast Experiences
MeasureWorks - Design for Fast Experiences
MeasureWorks
 
Advanced #2 - ui perf
 Advanced #2 - ui perf Advanced #2 - ui perf
Advanced #2 - ui perf
Vitali Pekelis
 
SEO Performance Report
SEO Performance ReportSEO Performance Report
SEO Performance Report
Project Management Software
 
Speed is Essential for a Great Web Experience (Canvas Conf Version)
Speed is Essential for a Great Web Experience (Canvas Conf Version)Speed is Essential for a Great Web Experience (Canvas Conf Version)
Speed is Essential for a Great Web Experience (Canvas Conf Version)
Andy Davies
 
Android how to hellowidget
Android how to hellowidgetAndroid how to hellowidget
Android how to hellowidget
Mohammad Ali Raza Siddiqui
 
Android howto hellowidget
Android howto hellowidgetAndroid howto hellowidget
Android howto hellowidget
Hiron Das
 
Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)
Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)
Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)
Nicholas Zakas
 
The ultimate guide to optimize your react native app performance in 2022
The ultimate guide to optimize your react native app performance in 2022The ultimate guide to optimize your react native app performance in 2022
The ultimate guide to optimize your react native app performance in 2022
Katy Slemon
 
Progressive Enhancement 2.0 (Conference Agnostic)
Progressive Enhancement 2.0 (Conference Agnostic)Progressive Enhancement 2.0 (Conference Agnostic)
Progressive Enhancement 2.0 (Conference Agnostic)
Nicholas Zakas
 
Faster Frontends
Faster FrontendsFaster Frontends
Faster Frontends
Andy Davies
 
Speed is Essential for a Great Web Experience
Speed is Essential for a Great Web ExperienceSpeed is Essential for a Great Web Experience
Speed is Essential for a Great Web Experience
Andy Davies
 
Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...
Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...
Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...
Link-Assistant.Com
 
Building an Appier Web - May 2016
Building an Appier Web - May 2016Building an Appier Web - May 2016
Building an Appier Web - May 2016
Andy Davies
 
MeasureWorks - Design for Fast Experiences (Startup session).key
MeasureWorks  - Design for Fast Experiences (Startup session).keyMeasureWorks  - Design for Fast Experiences (Startup session).key
MeasureWorks - Design for Fast Experiences (Startup session).key
MeasureWorks
 
Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…
Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…
Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…
Atwix
 
MeasureWorks - Velocity Europe - Real World Rum
MeasureWorks - Velocity Europe - Real World RumMeasureWorks - Velocity Europe - Real World Rum
MeasureWorks - Velocity Europe - Real World Rum
MeasureWorks
 
Fastandbeautiful gd glittlerock
Fastandbeautiful gd glittlerockFastandbeautiful gd glittlerock
Fastandbeautiful gd glittlerock
Doug Sillars
 
Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...
Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...
Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...
John McCaffrey
 
Windy cityrails performance_tuning
Windy cityrails performance_tuningWindy cityrails performance_tuning
Windy cityrails performance_tuning
John McCaffrey
 
Fake it 'til you make it
Fake it 'til you make itFake it 'til you make it
Fake it 'til you make it
Jonathan Snook
 

Similar to Fast Fashion… How Missguided revolutionised their approach to site performance - DeltaV Conference - May 2018 (20)

MeasureWorks - Design for Fast Experiences
MeasureWorks - Design for Fast ExperiencesMeasureWorks - Design for Fast Experiences
MeasureWorks - Design for Fast Experiences
 
Advanced #2 - ui perf
 Advanced #2 - ui perf Advanced #2 - ui perf
Advanced #2 - ui perf
 
SEO Performance Report
SEO Performance ReportSEO Performance Report
SEO Performance Report
 
Speed is Essential for a Great Web Experience (Canvas Conf Version)
Speed is Essential for a Great Web Experience (Canvas Conf Version)Speed is Essential for a Great Web Experience (Canvas Conf Version)
Speed is Essential for a Great Web Experience (Canvas Conf Version)
 
Android how to hellowidget
Android how to hellowidgetAndroid how to hellowidget
Android how to hellowidget
 
Android howto hellowidget
Android howto hellowidgetAndroid howto hellowidget
Android howto hellowidget
 
Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)
Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)
Progressive Enhancement 2.0 (jQuery Conference SF Bay Area 2011)
 
The ultimate guide to optimize your react native app performance in 2022
The ultimate guide to optimize your react native app performance in 2022The ultimate guide to optimize your react native app performance in 2022
The ultimate guide to optimize your react native app performance in 2022
 
Progressive Enhancement 2.0 (Conference Agnostic)
Progressive Enhancement 2.0 (Conference Agnostic)Progressive Enhancement 2.0 (Conference Agnostic)
Progressive Enhancement 2.0 (Conference Agnostic)
 
Faster Frontends
Faster FrontendsFaster Frontends
Faster Frontends
 
Speed is Essential for a Great Web Experience
Speed is Essential for a Great Web ExperienceSpeed is Essential for a Great Web Experience
Speed is Essential for a Great Web Experience
 
Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...
Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...
Winning with mobile page speed: killer technologies, tools, and tips [by Aleh...
 
Building an Appier Web - May 2016
Building an Appier Web - May 2016Building an Appier Web - May 2016
Building an Appier Web - May 2016
 
MeasureWorks - Design for Fast Experiences (Startup session).key
MeasureWorks  - Design for Fast Experiences (Startup session).keyMeasureWorks  - Design for Fast Experiences (Startup session).key
MeasureWorks - Design for Fast Experiences (Startup session).key
 
Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…
Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…
Mobile First: Responsive Design for eCommerce | Imagine 2013 Technology | B…
 
MeasureWorks - Velocity Europe - Real World Rum
MeasureWorks - Velocity Europe - Real World RumMeasureWorks - Velocity Europe - Real World Rum
MeasureWorks - Velocity Europe - Real World Rum
 
Fastandbeautiful gd glittlerock
Fastandbeautiful gd glittlerockFastandbeautiful gd glittlerock
Fastandbeautiful gd glittlerock
 
Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...
Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...
Ruby on Rails Performance Tuning. Make it faster, make it better (WindyCityRa...
 
Windy cityrails performance_tuning
Windy cityrails performance_tuningWindy cityrails performance_tuning
Windy cityrails performance_tuning
 
Fake it 'til you make it
Fake it 'til you make itFake it 'til you make it
Fake it 'til you make it
 

More from Andy Davies

AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018
AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018
AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018
Andy Davies
 
AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018
AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018
AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018
Andy Davies
 
Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018
Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018
Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018
Andy Davies
 
Selling Performance - Bristol WebPerf Meetup 2017-07-20
Selling Performance - Bristol WebPerf Meetup 2017-07-20Selling Performance - Bristol WebPerf Meetup 2017-07-20
Selling Performance - Bristol WebPerf Meetup 2017-07-20
Andy Davies
 
Speed: The 'Forgotten' Conversion Factor
Speed: The 'Forgotten' Conversion FactorSpeed: The 'Forgotten' Conversion Factor
Speed: The 'Forgotten' Conversion Factor
Andy Davies
 
Building an Appier Web - London Web Standards - Nov 2016
Building an Appier Web -  London Web Standards - Nov 2016Building an Appier Web -  London Web Standards - Nov 2016
Building an Appier Web - London Web Standards - Nov 2016
Andy Davies
 
Building an Appier Web - Velocity Amsterdam 2016
Building an Appier Web - Velocity Amsterdam 2016Building an Appier Web - Velocity Amsterdam 2016
Building an Appier Web - Velocity Amsterdam 2016
Andy Davies
 
The Case for HTTP/2 - GreeceJS - June 2016
The Case for HTTP/2 -  GreeceJS - June 2016The Case for HTTP/2 -  GreeceJS - June 2016
The Case for HTTP/2 - GreeceJS - June 2016
Andy Davies
 
The Fast, The Slow and The Unconverted - Emerce Conversion 2016
The Fast, The Slow and The Unconverted -  Emerce Conversion 2016The Fast, The Slow and The Unconverted -  Emerce Conversion 2016
The Fast, The Slow and The Unconverted - Emerce Conversion 2016
Andy Davies
 
The Case for HTTP/2 - Internetdagarna 2015 - Stockholm
The Case for HTTP/2  - Internetdagarna 2015 - StockholmThe Case for HTTP/2  - Internetdagarna 2015 - Stockholm
The Case for HTTP/2 - Internetdagarna 2015 - Stockholm
Andy Davies
 
Making Mobile Sites Faster
Making Mobile Sites FasterMaking Mobile Sites Faster
Making Mobile Sites Faster
Andy Davies
 
The Case for HTTP/2 - EpicFEL Sept 2015
The Case for HTTP/2 - EpicFEL Sept 2015The Case for HTTP/2 - EpicFEL Sept 2015
The Case for HTTP/2 - EpicFEL Sept 2015
Andy Davies
 
Speed matters, So why is your site so slow?
Speed matters, So why is your site so slow?Speed matters, So why is your site so slow?
Speed matters, So why is your site so slow?
Andy Davies
 
The Case for HTTP/2
The Case for HTTP/2The Case for HTTP/2
The Case for HTTP/2
Andy Davies
 
HTTP2 is Here!
HTTP2 is Here!HTTP2 is Here!
HTTP2 is Here!
Andy Davies
 
Speed Matters!
Speed Matters!Speed Matters!
Speed Matters!
Andy Davies
 
The web is too slow
The web is too slow The web is too slow
The web is too slow
Andy Davies
 
Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?
Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?
Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?
Andy Davies
 
Http/2 - What's it all about?
Http/2  - What's it all about?Http/2  - What's it all about?
Http/2 - What's it all about?
Andy Davies
 
What does the browser pre-loader do?
What does the browser pre-loader do?What does the browser pre-loader do?
What does the browser pre-loader do?
Andy Davies
 

More from Andy Davies (20)

AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018
AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018
AB Testing, Ads and other 3rd party tags - London WebPerf - March 2018
 
AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018
AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018
AB Testing, Ads and other 3rd party tags - SmashingConf London - 2018
 
Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018
Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018
Inspecting iOS App Traffic with JavaScript - JSOxford - Jan 2018
 
Selling Performance - Bristol WebPerf Meetup 2017-07-20
Selling Performance - Bristol WebPerf Meetup 2017-07-20Selling Performance - Bristol WebPerf Meetup 2017-07-20
Selling Performance - Bristol WebPerf Meetup 2017-07-20
 
Speed: The 'Forgotten' Conversion Factor
Speed: The 'Forgotten' Conversion FactorSpeed: The 'Forgotten' Conversion Factor
Speed: The 'Forgotten' Conversion Factor
 
Building an Appier Web - London Web Standards - Nov 2016
Building an Appier Web -  London Web Standards - Nov 2016Building an Appier Web -  London Web Standards - Nov 2016
Building an Appier Web - London Web Standards - Nov 2016
 
Building an Appier Web - Velocity Amsterdam 2016
Building an Appier Web - Velocity Amsterdam 2016Building an Appier Web - Velocity Amsterdam 2016
Building an Appier Web - Velocity Amsterdam 2016
 
The Case for HTTP/2 - GreeceJS - June 2016
The Case for HTTP/2 -  GreeceJS - June 2016The Case for HTTP/2 -  GreeceJS - June 2016
The Case for HTTP/2 - GreeceJS - June 2016
 
The Fast, The Slow and The Unconverted - Emerce Conversion 2016
The Fast, The Slow and The Unconverted -  Emerce Conversion 2016The Fast, The Slow and The Unconverted -  Emerce Conversion 2016
The Fast, The Slow and The Unconverted - Emerce Conversion 2016
 
The Case for HTTP/2 - Internetdagarna 2015 - Stockholm
The Case for HTTP/2  - Internetdagarna 2015 - StockholmThe Case for HTTP/2  - Internetdagarna 2015 - Stockholm
The Case for HTTP/2 - Internetdagarna 2015 - Stockholm
 
Making Mobile Sites Faster
Making Mobile Sites FasterMaking Mobile Sites Faster
Making Mobile Sites Faster
 
The Case for HTTP/2 - EpicFEL Sept 2015
The Case for HTTP/2 - EpicFEL Sept 2015The Case for HTTP/2 - EpicFEL Sept 2015
The Case for HTTP/2 - EpicFEL Sept 2015
 
Speed matters, So why is your site so slow?
Speed matters, So why is your site so slow?Speed matters, So why is your site so slow?
Speed matters, So why is your site so slow?
 
The Case for HTTP/2
The Case for HTTP/2The Case for HTTP/2
The Case for HTTP/2
 
HTTP2 is Here!
HTTP2 is Here!HTTP2 is Here!
HTTP2 is Here!
 
Speed Matters!
Speed Matters!Speed Matters!
Speed Matters!
 
The web is too slow
The web is too slow The web is too slow
The web is too slow
 
Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?
Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?
Are Today’s Good Practices… Tomorrow’s Performance Anti-Patterns?
 
Http/2 - What's it all about?
Http/2  - What's it all about?Http/2  - What's it all about?
Http/2 - What's it all about?
 
What does the browser pre-loader do?
What does the browser pre-loader do?What does the browser pre-loader do?
What does the browser pre-loader do?
 

Recently uploaded

"Choosing proper type of scaling", Olena Syrota
"Choosing proper type of scaling", Olena Syrota"Choosing proper type of scaling", Olena Syrota
"Choosing proper type of scaling", Olena Syrota
Fwdays
 
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyFreshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
ScyllaDB
 
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
saastr
 
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUHCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
panagenda
 
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Driving Business Innovation: Latest Generative AI Advancements & Success StoryDriving Business Innovation: Latest Generative AI Advancements & Success Story
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Safe Software
 
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
"Frontline Battles with DDoS: Best practices and Lessons Learned",  Igor Ivaniuk"Frontline Battles with DDoS: Best practices and Lessons Learned",  Igor Ivaniuk
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
Fwdays
 
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectorsConnector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
DianaGray10
 
Main news related to the CCS TSI 2023 (2023/1695)
Main news related to the CCS TSI 2023 (2023/1695)Main news related to the CCS TSI 2023 (2023/1695)
Main news related to the CCS TSI 2023 (2023/1695)
Jakub Marek
 
Apps Break Data
Apps Break DataApps Break Data
Apps Break Data
Ivo Velitchkov
 
Nordic Marketo Engage User Group_June 13_ 2024.pptx
Nordic Marketo Engage User Group_June 13_ 2024.pptxNordic Marketo Engage User Group_June 13_ 2024.pptx
Nordic Marketo Engage User Group_June 13_ 2024.pptx
MichaelKnudsen27
 
Skybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoptionSkybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoption
Tatiana Kojar
 
GNSS spoofing via SDR (Criptored Talks 2024)
GNSS spoofing via SDR (Criptored Talks 2024)GNSS spoofing via SDR (Criptored Talks 2024)
GNSS spoofing via SDR (Criptored Talks 2024)
Javier Junquera
 
“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...
“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...
“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...
Edge AI and Vision Alliance
 
Introduction of Cybersecurity with OSS at Code Europe 2024
Introduction of Cybersecurity with OSS  at Code Europe 2024Introduction of Cybersecurity with OSS  at Code Europe 2024
Introduction of Cybersecurity with OSS at Code Europe 2024
Hiroshi SHIBATA
 
AppSec PNW: Android and iOS Application Security with MobSF
AppSec PNW: Android and iOS Application Security with MobSFAppSec PNW: Android and iOS Application Security with MobSF
AppSec PNW: Android and iOS Application Security with MobSF
Ajin Abraham
 
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfHow to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
Chart Kalyan
 
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development ProvidersYour One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
akankshawande
 
Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...
Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...
Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...
saastr
 
The Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptxThe Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptx
operationspcvita
 
Energy Efficient Video Encoding for Cloud and Edge Computing Instances
Energy Efficient Video Encoding for Cloud and Edge Computing InstancesEnergy Efficient Video Encoding for Cloud and Edge Computing Instances
Energy Efficient Video Encoding for Cloud and Edge Computing Instances
Alpen-Adria-Universität
 

Recently uploaded (20)

"Choosing proper type of scaling", Olena Syrota
"Choosing proper type of scaling", Olena Syrota"Choosing proper type of scaling", Olena Syrota
"Choosing proper type of scaling", Olena Syrota
 
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyFreshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
 
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...
 
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUHCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
 
Driving Business Innovation: Latest Generative AI Advancements & Success Story
Driving Business Innovation: Latest Generative AI Advancements & Success StoryDriving Business Innovation: Latest Generative AI Advancements & Success Story
Driving Business Innovation: Latest Generative AI Advancements & Success Story
 
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
"Frontline Battles with DDoS: Best practices and Lessons Learned",  Igor Ivaniuk"Frontline Battles with DDoS: Best practices and Lessons Learned",  Igor Ivaniuk
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor Ivaniuk
 
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectorsConnector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
 
Main news related to the CCS TSI 2023 (2023/1695)
Main news related to the CCS TSI 2023 (2023/1695)Main news related to the CCS TSI 2023 (2023/1695)
Main news related to the CCS TSI 2023 (2023/1695)
 
Apps Break Data
Apps Break DataApps Break Data
Apps Break Data
 
Nordic Marketo Engage User Group_June 13_ 2024.pptx
Nordic Marketo Engage User Group_June 13_ 2024.pptxNordic Marketo Engage User Group_June 13_ 2024.pptx
Nordic Marketo Engage User Group_June 13_ 2024.pptx
 
Skybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoptionSkybuffer SAM4U tool for SAP license adoption
Skybuffer SAM4U tool for SAP license adoption
 
GNSS spoofing via SDR (Criptored Talks 2024)
GNSS spoofing via SDR (Criptored Talks 2024)GNSS spoofing via SDR (Criptored Talks 2024)
GNSS spoofing via SDR (Criptored Talks 2024)
 
“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...
“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...
“How Axelera AI Uses Digital Compute-in-memory to Deliver Fast and Energy-eff...
 
Introduction of Cybersecurity with OSS at Code Europe 2024
Introduction of Cybersecurity with OSS  at Code Europe 2024Introduction of Cybersecurity with OSS  at Code Europe 2024
Introduction of Cybersecurity with OSS at Code Europe 2024
 
AppSec PNW: Android and iOS Application Security with MobSF
AppSec PNW: Android and iOS Application Security with MobSFAppSec PNW: Android and iOS Application Security with MobSF
AppSec PNW: Android and iOS Application Security with MobSF
 
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfHow to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
 
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development ProvidersYour One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
 
Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...
Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...
Deep Dive: AI-Powered Marketing to Get More Leads and Customers with HyperGro...
 
The Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptxThe Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptx
 
Energy Efficient Video Encoding for Cloud and Edge Computing Instances
Energy Efficient Video Encoding for Cloud and Edge Computing InstancesEnergy Efficient Video Encoding for Cloud and Edge Computing Instances
Energy Efficient Video Encoding for Cloud and Edge Computing Instances
 

Fast Fashion… How Missguided revolutionised their approach to site performance - DeltaV Conference - May 2018