Marcin Zajkowski PRO
Umbraco MVP x5, Senior Solution Architect / CTO / Country Manager @novicell • Team Captain @wowschoolpl • #umbraCoffee Co-Host • IT Consultant and Public Speaker.
CTO @ Cogworks
CTO / CKO @ WOW School
Marcin @ umbraCoffee (Friday's 11:30 on YT)
Blogger @ udfnd.pl
- Lenny Rachitsky, Product Manager, Airbnb
Pinterest increased search engine traffic and sign-ups by 15% when they reduced perceived wait times by 40%.
The BBC found they lost an additional 10% of users for every additional second their site took to load.
DoubleClick by Google found 53% of mobile site visits were abandoned if a page took longer than 3 seconds to load.
E-commerce studies: 2 seconds delay during checkout increases the abandonment rate by up to 30%.
Amazon (and Walmart) Found Every 100ms of Latency Cost them 1% in Sales.
DoubleClick found publishers whose sites loaded within five seconds earned up to twice as much ad revenue than sites loading within 19 seconds.
Dear Customer / Stakeholder:
- Peter Drucker, American Businessmen (1909-2005)
By Marcin Zajkowski
Most of us developers think about performance when it's already 'a little bit too late'. When the client or user reports that our solution is 'slow' or fails every time on Friday at 5 pm when more than 'X' users opens the app... Why???!!! Would we care more if it was easy and simple? What if I tell you that it is? Let's talk about the Umbraco implementations in which each millisecond and TTFB matters. We'll talk about low-level code optimisations, but also the whole setup to let us convert our benchmarks and data into fully automated performance testing setup to deliver high quality and high-performance web applications.