Free website utility

Mobile-Readiness Checker

Paste page HTML for a source-level check of viewport metadata and explicit wide elements. For rendered overflow and control sizes, add the RX Tools widget to your site and run it at the mobile viewport size.

Third-party ad scripts run on this page and may inspect pasted HTML. Use public, authorized, non-sensitive source only.

Source review cannot evaluate every CSS rule, runtime layout, or device behavior. Findings are heuristics, not an accessibility or mobile-conformance certification.

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