Anduy261 on "How do I know if my theme applies native responsive image support?"

Hello,

I have my theme developed by someone else.

Now I've just come across this article:
https://make.wordpress.org/core/2015/11/10/responsive-images-in-wordpress-4-4/

How do I know if my theme supports this?

I've tried loading my site with a small browser width and download the images but it gives me the orignal image sizes. Does that mean it doesn't work?

Thank you.

Try asking the developer of your theme this question. There's really no way we can answer it given that we have zero access to this theme.

Thank you esmi for your reply.

I'm sorry I forgot to post my website here.

Here it is: http://toeicmoingay.com/

I did try to ask my developer but it doesn't seem that he has a clue.

I'm sorry to hear that.

As you are using a commercially developed custom theme, there is very little we can do to help. We do not have access to, nor do we support, commercial products here. You could hiring someone via http://directory.codepoet.com/ or http://jobs.wordpress.net/

Yes, it does.

Looking at the first image on

http://toeicmoingay.com/tu-vung/

I see a srcset

<img class="aligncenter size-full wp-image-1130" src="http://www.toeicmoingay.com/wp-content/uploads/2016/06/memrise1.jpg" alt="memrise1" width="562" height="283" srcset="http://toeicmoingay.com/wp-content/uploads/2016/06/memrise1.jpg 562w, http://toeicmoingay.com/wp-content/uploads/2016/06/memrise1-300x151.jpg 300w, http://toeicmoingay.com/wp-content/uploads/2016/06/memrise1-377x190.jpg 377w" sizes="(max-width: 562px) 100vw, 562px">

Thank you very much stedata,

I understand that a different size has been specified for each screen width.

But is there anyway for me to be sure that my site DOES LOAD the smaller version when I view it on a small screen?