Does the Bulk Image Checker download full images?

No. It only requests image headers to retrieve file size and MIME type, making scans fast and bandwidth-efficient.

Can it detect images without width and height attributes?

Yes. The tool flags images missing HTML width and height attributes, helping you prevent layout shift and improve Core Web Vitals.

Will the Bulk Image Checker find lazy-loaded images?

It can detect any image tag in the HTML source, including those marked with loading='lazy', but it does not execute JavaScript for images loaded after page render.

Bulk Image Checker

About the Bulk Image Checker

The Bulk Image Checker from SEOAegis is a fast, browser-based tool for scanning multiple web pages and instantly listing every <img> element along with its live URL, file size (KB), MIME type, and declared HTML width/height attributes. It’s built for SEOs, web developers, content teams, and QA specialists who need a precise image inventory for performance, accessibility, and SEO audits.

The tool parses standard <img> tags and srcset attributes, checks HTTP headers to report file size and content type without fully downloading images, and flags oversized or missing attributes. Results can be exported to CSV for easy sharing with your team or integration into bulk optimization workflows.

Why This Matters for SEO & Performance

Faster page speed: Large images slow load time, increasing bounce rates and hurting Core Web Vitals.
Better rankings: Optimized images improve Google’s Page Experience signals and image search visibility.
Accessibility compliance: Images with proper size and alt attributes meet WCAG standards.
Reduced bandwidth costs: Smaller images save server resources, especially on high-traffic sites.

Key Features

Inventory all images (including srcset candidates) from multiple URLs in one run.
Retrieve file sizes from server headers—no full downloads needed.
View MIME types and HTML dimensions for quick QA checks.
Export results to CSV for batch optimization or documentation.

When to Use This Tool

During SEO audits to identify large or unoptimized images.
Before and after website migrations to ensure media consistency.
For monthly performance checks to keep Core Web Vitals healthy.
When preparing image-heavy pages for campaigns or seasonal traffic spikes.

Pro Tip: Aim to keep key page images under 100 KB and use width and height attributes to help browsers reserve space—reducing layout shift and improving CLS scores.

FAQs

Does this tool download full images?: No. It requests headers only, which makes the scan faster and lighter on bandwidth.
Can it detect images without width/height attributes?: Yes. Missing dimensions are flagged so you can fix layout shift issues for better UX and SEO scores.
Will it find lazy-loaded images?: It detects any <img> tag in the HTML source, including those with loading="lazy", but won’t execute JavaScript for dynamically injected images.

Tip: Combine this tool with compression and next-gen formats (WebP, AVIF) to reduce load times and boost SEO.