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# Website responsive test

Open a URL in live iframes at phone, tablet, laptop, and desktop CSS widths with zoom and rotate controls, a framing-blocked fallback, and a copyable checklist report.

Enter an address and press Load previews. Without a scheme, https is added.

The previews are this browser rendering the real site inside iframes at real CSS widths. That is not an emulator: no touch input, no mobile fonts, no mobile user agent, and nothing computed on a phone-sized device is reproduced. Sites can refuse to be framed, and a score out of 100 would be made up, so the checklist stays manual and the load facts stay honest.
OptionsLoad previews

## More web & auth tools

- [Screen & viewport](/browser/screen)
- [HTTP timing probe](/network/http-timing)
[All web & auth tools](/web)

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Canonical HTML: https://nutter.tools/web/website-responsive-test
Markdown version: https://nutter.tools/web/website-responsive-test.md
Plain-text version: https://nutter.tools/web/website-responsive-test.txt
Agent index: https://nutter.tools/llms.txt