Andrea Verlicchi – Medium

Andrea Verlicchi

Andrea Verlicchi
in
YNAP Tech

Quicklink case study: faster pages, increased page views

Quicklink is a lightweight library created by Addy Osmani (Google) that prefetches pages linked to the current page, as the links to those…

5 min readJun 18, 2021

--

1

quicklink

--

1

Andrea Verlicchi
in
YNAP Tech

How to cap image fidelity to 2x and save 45% image weight on high-end mobile phones

With the rise of very high density “super retina” displays in newest high-end devices such as all the iPhone 12 from the Mini to the Pro…

5 min readNov 14, 2020

--

1

How to cap image fidelity to 2x and save 45% image weight on high-end mobile phones

--

1

Andrea Verlicchi
in
YNAP Tech

How to optimize for CLS when having to load more content

Cumulative Layout Shift (CLS) is an important, user-centric metric for measuring visual stability because it helps quantify how often…

3 min readAug 31, 2020

--

How to optimize for CLS when having to load more content

--

Andrea Verlicchi
in
YNAP Tech

Optimizing CLS and LCP on chloe.com

In this article we explain how we at YOOX NET-A-PORTER optimized the Chloé website for a couple of Core Web Vitals: Largest Contentful…

7 min readJul 1, 2020

--

Optimizing CLS and LCP on chloe.com

--

Andrea Verlicchi

Inset box-shadow rendering bug on Safari iOS 13.4

Apple introduced a bug in the rendering of boxes with specific CSS rules for box-shadow oniOS 13.4

3 min readApr 2, 2020

--

2

On iOS 13.4, a black vertical bar appears

--

2

Andrea Verlicchi
in
YNAP Tech

Native lazy-loading and js-based fallback with vanilla-lazyload 12

On April 6th 2019, Addy Osmany wrote about native image lazy-loading. Two days later Yvain, a front-end developer from Paris, asked me if…

3 min readApr 11, 2019

--

Native lazy-loading and js-based fallback with vanilla-lazyload 12

--

Andrea Verlicchi

Responsive and accessible table design

How to make a potentially wide table fit on small devices, without losing readability and accessibility? Here are simple solutions to make…

2 min readMar 8, 2019

--

--

Andrea Verlicchi
in
YNAP Tech

Check if an element is still inside the viewport after a given time

What would you do if somebody asked you to load a DOM element (like an image, or a video) only if it stays inside the viewport for a given…

5 min readAug 29, 2018

--

2

Check if an element is still inside the viewport after a given time

--

2

Andrea Verlicchi

Andrea Verlicchi

Web performance consultant at Cognizant Netcentric, formerly YOOX NET-A-PORTER. Technical writer, speaker at web conferences.

Help
Status
About
Careers
Blog
Privacy
Terms
Text to speech
Teams