How do you Defer Parsing of JavaScript for YouTube video on a WordPress site?

Question

I just today realized that of my 1.2 MB site (per GTMetrix), 550k of it is a YouTube video.

My web site is a WordPress site, and the current video loads in an iframe.

Answer 1

1. Replace “scr” with “data-src”

2. Add Javascript

function init() {
var vidDefer = document.getElementsByTagName('iframe');
for (var i=0; i

Now your site will load faster compared to past.

I have following this blog and it's working for me : http://www.codecanal.com/defer-parsing-javascript-youtube-videos/