Deep Scan: Capture Lazy-Loaded and AJAX Images in Chrome

Why a normal scan misses images on modern sites

If you have ever scanned a page and ended up with half the images you expected, you already know the problem. Most modern websites do not load every image up front. They wait. Images appear only when you scroll near them, when a script fetches the next batch, or when a gallery quietly swaps in new content. A quick look at the page source shows placeholders, blank pixels, or nothing at all where the real photos should be.

That behavior is called lazy loading, and it is everywhere now because it makes pages feel faster. The trade-off is that any tool grabbing only what is currently in the page can never see the images that have not loaded yet. This is exactly the gap Deep Scan in Bulk Image Downloader From URL List was built to close.

What Deep Scan actually does

Open the side panel and choose Deep Scan instead of a plain page scan. Rather than reading the page once and stopping, Deep Scan works the way a patient human would: it scrolls down the page in steps, pauses to let new content render, and keeps collecting image URLs as they appear. It repeats that scroll-and-wait cycle until the page stops producing new images or your scan duration runs out.

Because it gives scripts time to run, Deep Scan catches images delivered through:

• Lazy loading — photos that only load as they enter the viewport.
• Infinite scroll — feeds that append more results as you reach the bottom.
• AJAX content — galleries and tabs that fetch images after the initial page load.

Setting it up for the best results

A few toggles make a real difference. Before you launch a Deep Scan, decide how long it should run — you can pick a duration preset from around thirty seconds up to several minutes, or let it run until you press Stop Scan. For very long feeds, a longer window gives the page time to load everything.

Two companion settings are worth knowing. Continuous Scanning keeps watching the page so new images keep landing in your list automatically. Stack Mode decides whether each scan adds to your existing results or starts fresh — turn it on when you are scanning several pages and want one combined collection.

While the scan runs, the side panel shows the active mode, elapsed time, and any permission notices. If the extension is blocked on a page, the notice tells you what to fix instead of failing silently.

When to reach for Deep Scan

Use a plain page scan for simple, static galleries — it is faster and that is all you need. Switch to Deep Scan the moment a page scrolls endlessly, loads images as you move, or feels script-heavy: think social feeds, marketplace listings, photography portfolios, and editorial sites. Once the scan finishes, every captured image lands in your results, ready to filter, dedupe, and send to a download task. That is the whole point — capture everything once, then decide what to keep.