I've started to notice that when loading a YouTube page, before content is loaded, everything appears as grey boxes:

Want to try this out and cannot find answers. Only e across articles of people asking for help because the content didn't actually load for them, ex: YouTube Help Forum

Is this YouTube's way of lazy loading? is this mainly done with Javascript?

I've started to notice that when loading a YouTube page, before content is loaded, everything appears as grey boxes:

Want to try this out and cannot find answers. Only e across articles of people asking for help because the content didn't actually load for them, ex: YouTube Help Forum

Is this YouTube's way of lazy loading? is this mainly done with Javascript?

• javascript
• youtube
• lazy-loading

• Related: What is the name of this practice when a page loads?. This is not really remended. It’s been described as a “A placebo for slow internet”. – Sebastian Simon Commented Apr 22, 2018 at 3:39
• 1 Why the down vote though? Thought this was legit a good thing, especially for accessibility. – allenski Commented Apr 22, 2018 at 3:41
• Your question is too broad. It’s not really clear what you need, or what kind of answers you expect. – Sebastian Simon Commented Apr 22, 2018 at 3:53
• 1 I only have 2 question written there followed by a question mark. I would like to know what is the best approach to do this. Thanks for the links btw, helps a bit. – allenski Commented Apr 22, 2018 at 3:56

1 Answer 1

This technique is also called "skeleton screen".