2 ms·
Download Google Chrome, open your site, hit Ctrl+Shift+J, click Resources, look for loooooong lines and see what they are. Everything to the right of blue line
by rarestblog 16y ago
Download Google Chrome, open your site, hit Ctrl+Shift+J, click Resources, look for loooooong lines and see what they are. Everything to the right of blue line is mostly safe (async).
Also open your HTML source and search for src="http, look if any of those are <script tags. Async loading scripts don't use src="http part.
Update: http://whiteposts.com/not-async http://whiteposts.com/not-async