Title: WordPress is adding nonsense srcset
Last modified: September 12, 2025

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# WordPress is adding nonsense srcset

 *  [jiripolacek](https://wordpress.org/support/users/jiripolacek/)
 * (@jiripolacek)
 * [8 months, 2 weeks ago](https://wordpress.org/support/topic/wordpress-is-adding-nonsense-srcset/)
 * Hi,
 * I want to use image in exact size 800x533px (registered size for WooCommerce 
   Single products) and WordPress is still adding srcset and sizes attributes with
   nonsense values like this:
 *     ```wp-block-code
       <img loading="lazy" decoding="async" width="800" height="533" src="https://www.mywebsite.com/media/2025/09/homepage-cestovani-800x533.png" class="attachment-woocommerce_single size-woocommerce_single wp-image-7256" alt="" srcset="https://www.mywebsite.com/media/2025/09/homepage-cestovani-800x533.png 800w, https://www.mywebsite.com/media/2025/09/homepage-cestovani-300x200.png 300w, https://www.mywebsite.com/media/2025/09/homepage-cestovani-1024x683.png 1024w, https://www.mywebsite.com/media/2025/09/homepage-cestovani-768x512.png 768w, https://www.mywebsite.com/media/2025/09/homepage-cestovani-990x660.png 990w, https://www.mywebsite.com/media/2025/09/homepage-cestovani-441x294.png 441w, https://www.mywebsite.com/media/2025/09/homepage-cestovani-150x100.png 150w, https://www.mywebsite.com/media/2025/09/homepage-cestovani.png 1536w" sizes="(max-width: 360px) 330px, (max-width: 800px) 100vw, 800px">
       ```
   
 * Nonsense:
    1. It used original image 1536×1536 for <img width=”800″ height=”533″>
    2.  - = horribly bad aspect ratio, too big image
    3. etc.
 * There are 2 main problems:
    1. I set width=”800″ height=”533″ so I want to always use image image-800×533.jpg
    2. Even if I want to use smaller responsive images, I don’t want to use larger 
       responsive images because I know that on any screen (100000x100000px) in layout
       the image will not show larger than 800x533px.
    3.  - Like: you have your website 1024 width so you know images on this website
          will be never more width than 1024.
        - (Image is not used for anything like full screen detailed showing.
 * Is it known issue which WordPress is working on?
 * Is there a fix for now?
 * Regards,
 * Jiri Polacek

Viewing 1 replies (of 1 total)

 *  Moderator [threadi](https://wordpress.org/support/users/threadi/)
 * (@threadi)
 * [8 months, 2 weeks ago](https://wordpress.org/support/topic/wordpress-is-adding-nonsense-srcset/#post-18638945)
 * I assume you are referring to the information in `srcset`, which defines which
   graphics should be used for output on different devices. This optimizes the loading
   times of the page and also leads to positive ratings from Google and ultimately
   to better findability of your page in search results. On a phone, for example,
   your preferred graphic with a width of 800 pixels would not be displayed at all
   in this width, but with 350-760 depending on the phone-type. If it were still
   loaded with these bigger dimensions, the displaying device would waste additional
   bytes, which would affect both the loading and the rendering time. That’s why
   HTML has the `srcset `attribute, so that the browser can decide for itself which
   size of the graphic to load.
 * The information contained in `srcset `depends heavily on the theme used. WordPress
   provides a few default values for this, but the theme decides which ones to use
   and output here. Optimization plugins can also interfere here, as they want to
   optimize the page for different end devices as described above.
 * To answer your question, we would need to know more about your project, e.g.,
   which theme you are using and whether and which optimization plugins you are 
   using. A link to the page could also help.
 * If you don’t want to show this, you can try to influence the information in `
   srcset `yourself. With the hook [wp_calculate_image_srcset](https://developer.wordpress.org/reference/hooks/wp_calculate_image_srcset/),
   you can change or even empty the list. All srcset information should be removed
   with the following code:
 *     ```wp-block-code
       add_filter( ‘wp_calculate_image_srcset’, ‘__return_empty_array’, PHP_INT_MAX );
       ```
   
 * I haven’t tested this yet, but you’re welcome to give it a try. The information
   would need to be added to the functions.php of your child theme or via the Code
   Snippet plugin in the project. Please note, however, that this will have a negative
   impact on your page’s loading times, including its search engine visibility.

Viewing 1 replies (of 1 total)

The topic ‘WordPress is adding nonsense srcset’ is closed to new replies.

## Tags

 * [images](https://wordpress.org/support/topic-tag/images/)
 * [sizes](https://wordpress.org/support/topic-tag/sizes/)
 * [srcset](https://wordpress.org/support/topic-tag/srcset/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [threadi](https://wordpress.org/support/users/threadi/)
 * Last activity: [8 months, 2 weeks ago](https://wordpress.org/support/topic/wordpress-is-adding-nonsense-srcset/#post-18638945)
 * Status: not resolved

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