The capture is a fresh, anonymous session — no cookies, no login, no saved location. Pages that vary by logged-in state, region, or A/B test bucket will show their default variant, not your personalized view.
Full-page screenshots and lazy-loaded images can conflict: content that only loads as a real user scrolls sometimes needs the scroll to trigger. The tool scrolls to force lazy assets, but very aggressive lazy-loading or infinite-scroll feeds may still capture placeholders below the initial render.
Cookie-consent banners, GDPR overlays, and newsletter pop-ups appear in the screenshot exactly as a first-time visitor sees them, because a clean session hasn't dismissed them yet. That's realistic, but if you want the underlying page, capture a URL that doesn't trigger the modal or expect the overlay in your image.
The default 1280x720 viewport captures the desktop layout. Responsive sites serve a different layout at mobile widths, so a desktop-width capture won't show you the mobile experience — plan captures around the breakpoint you actually care about.