ImageDimensions

This tool scans any website URL and reports the natural and rendered dimensions of every image on the page, including CSS background images, helping identify oversized images that slow down page load. It is designed for developers, marketers, and designers who need to audit image performance on websites. The tool renders JavaScript to capture dynamic content and respects robots.txt, offering a free tier with bulk and API options for larger audits.

Key features

• Scans entire page including JavaScript-rendered images
• Reports natural and rendered dimensions
• Includes CSS background images
• Respects robots.txt and privacy policies
• Supports direct image URL or drag-and-drop
• Bulk audit for hundreds of URLs
• API access for programmatic use