This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Specify Missing Image Dimensions


Specify Missing Image Dimensions is a WordPress plugin that helps to add missing width and height attributes to images. This plugin scans the entire HTML page and specify missing width and height to tags.

If you are seeing error like “Image elements do not have explicit width and height” on Google PageSpeed Insights then this plugin will help you to remove that error by adding missing width and height attributes to the required images.

By adding width and height to the images, Cumulative Layout Shift (CLS) also improves as there will be no more unwanted jumps while HTML page rendering.

How this Plugin Works

  1. Specify Missing Image Dimensions plugin scans the entire HTML page and finds images with missing width and height attributes.
  2. After finding the images, this plugin gets the image dimensions using getimagesize() function.
  3. After getting the required dimensions, plugin adds the width and height attributes to the images.


  • Exclude images by image extension
  • Exclude images by image Name
  • Exclude images by class
  • Exclude images by ID


  • Access “Specify Missing Image Dimensions” Settings Page
  • “Specify Missing Image Dimensions” Settings Page


Search for “Specify Missing Image Dimensions” under “Plugins” “Add New” in your WordPress dashboard to install the plugin.

Or install it manually:

  1. Download the plugin’s zip file.
  2. Go to Plugins Add New in your WordPress admin.
  3. Click on the Upload Plugin button.
  4. Select the file you downloaded.
  5. Click Install Plugin.
  6. Activate.


Why this plugin is important?

Once this plugin assigns missing width and height attributes to required images, there will be no more unwanted jumps while page rendering. Adding missing width and height attributes also help to improve scores on website speed tools such as Google’s PageSpeed and GTmetrix

Does this plugin also works for SVG?

Yes, if the SVG are added using tag, then this plugin will work fine for them.
But if you see some issues with SVG or any other type of images, you can exclude SVG using plugin’s option.


5 Eanáir, 2023
It doesn’t need much configuration, yet it works like magic. Thank you for this plugin. The CLS of the website is much better now.
18 Eanáir, 2022
Improved by CLS from 0.26 to 0.0004 with no effort! Using with Divi theme which is very heavy, so any improvement is good.
10 Deireadh Fómhair, 2021
After install this plugin, my website speed was improved a lot, thank you! Just please keep this plugin updated as quick as you can.
3 Lúnasa, 2021
Junk. Fix your product! I wasted 2 days trying to figure out why my entire site was absurdly slow and why my Wordpress admin kept getting “504 Gateway Timeout” errors that made it entirely unusable! I installed this thing to speed up my site, and you made it 100 times slower . . . and unusable! Great job! I couldn’t even load the plugins page to deactivate plugins one-by-one to identify the culprit. I had to rename each plugin folder via FTP in order to disable each plugin. As soon as I disable “Specify Missing Image Dimensions,” the problem goes away! REMOVE THIS HARMFUL PLUGIN!
Read all 10 reviews

Contributors & Developers

“Specify Missing Image Dimensions” is open source software. The following people have contributed to this plugin.




  • Handled running of plugin’s functionality at backend (wp-admin)


  • Handled Error causing by SVG images


  • Initial release