Title: Responsive images question
Last modified: April 23, 2020

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# Responsive images question

 *  Resolved [menathor](https://wordpress.org/support/users/menathor/)
 * (@menathor)
 * [6 years ago](https://wordpress.org/support/topic/responsive-images-question/)
 * Hi guys,
 * Just a question about the responsive / adaptive images feature. The description
   says “Serve only appropriately sized images depending on the visitor’s viewport”.
   Is this done using srcset?
 * If so, how is this different to what default WordPress does? As of v5.3 WordPress
   generates 8 different sizes and adds them as a srcset in the html, meaning any
   modern browser will select the right size for the viewport. Or are you using 
   the same method?
 * PS. The image optimisation is great 🙂

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Support [Gerard Blanco](https://wordpress.org/support/users/sixaxis/)
 * (@sixaxis)
 * [6 years ago](https://wordpress.org/support/topic/responsive-images-question/#post-12723642)
 * Hi [@menathor](https://wordpress.org/support/users/menathor/),
 * No, unlike other image optimization plugins, we don’t use srcset 🙂 We calculate
   the image size on-the-fly based on the device viewport, so you will always get
   the exact needed size.
 * Cheers!
 *  Thread Starter [menathor](https://wordpress.org/support/users/menathor/)
 * (@menathor)
 * [6 years ago](https://wordpress.org/support/topic/responsive-images-question/#post-12723665)
 * Great to know, thank you! So is the calculation of the required size done via
   JavaScript?
 *  Plugin Support [Gerard Blanco](https://wordpress.org/support/users/sixaxis/)
 * (@sixaxis)
 * [6 years ago](https://wordpress.org/support/topic/responsive-images-question/#post-12732251)
 * That is right!
 *  [kim01](https://wordpress.org/support/users/kim01/)
 * (@kim01)
 * [6 years ago](https://wordpress.org/support/topic/responsive-images-question/#post-12751983)
 * I installed SPAI on a website yesterday that uses the Divi theme and has a slider
   at the top of the Home page. The site also has SPIO.
 * Today the slider isn’t resizing for mobile – particularly phones.
 * Do I need to change the settings somewhere?
 * Kim
 *  Plugin Support [Gerard Blanco](https://wordpress.org/support/users/sixaxis/)
 * (@sixaxis)
 * [6 years ago](https://wordpress.org/support/topic/responsive-images-question/#post-12755642)
 * Hi [@kim01](https://wordpress.org/support/users/kim01/),
 * Can you please contact us [here](https://shortpixel.com/contact) so we can further
   assist you? Make sure you mention this conversation, please.
 * Thank you!

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Responsive images question’ is closed to new replies.

 * ![](https://ps.w.org/shortpixel-adaptive-images/assets/icon-256x256.png?rev=1989833)
 * [ShortPixel Adaptive Images - WebP, AVIF, CDN, Image Optimization](https://wordpress.org/plugins/shortpixel-adaptive-images/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/shortpixel-adaptive-images/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/shortpixel-adaptive-images/)
 * [Active Topics](https://wordpress.org/support/plugin/shortpixel-adaptive-images/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/shortpixel-adaptive-images/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/shortpixel-adaptive-images/reviews/)

 * 5 replies
 * 3 participants
 * Last reply from: [Gerard Blanco](https://wordpress.org/support/users/sixaxis/)
 * Last activity: [6 years ago](https://wordpress.org/support/topic/responsive-images-question/#post-12755642)
 * Status: resolved