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
- Specify Missing Image Dimensions plugin scans the entire HTML page and finds images with missing width and height attributes.
- After finding the images, this plugin gets the image dimensions using getimagesize() function.
- 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
Search for “Specify Missing Image Dimensions” under “Plugins” → “Add New” in your WordPress dashboard to install the plugin.
Or install it manually:
- Download the plugin’s zip file.
- Go to Plugins → Add New in your WordPress admin.
- Click on the Upload Plugin button.
- Select the file you downloaded.
- Click Install Plugin.
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.
Contributors and Developers
“Specify Missing Image Dimensions” is open source software. The following people have contributed to this plugin.Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
- Handled running of plugin’s functionality at backend (wp-admin)
- Handled Error causing by SVG images
- Initial release