Lazy Loading Images Checker
Check a webpage for images using the native loading="lazy" attribute.
Review image loading behavior for SEO, page speed, and Core Web Vitals.
Frequently Asked Questions
It fetches the page HTML, finds image tags, and checks whether each image has the native loading="lazy" attribute.
No. Images visible above the fold, especially the main hero or LCP image, should usually load normally. Lazy loading is best for below-the-fold images.
It can help by reducing initial page weight and improving perceived loading speed. The biggest SEO value comes from using it carefully together with optimized images, correct dimensions, and fast server responses.
Yes. 66audit includes this lazy loading images checker along with many other SEO audit tests, website monitoring, bulk audits, sitemap audits, and report exports.
Add image loading checks to your own SEO audit platform
66audit includes this checker with recurring audits, bulk URL checks, sitemap checks, public reports, and admin controls.