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Feedback on accuracy, feature ideas, and bug reports help more than anything. For calibration help, skim the calibration guide first - most zoom and scaling issues are covered there. Calibration guide.
Include your device, browser, and whether you calibrated with card, A4/Letter, custom length, or diagonal if you are reporting a measurement issue.
What to write about
- Calibration or accuracy questions on a specific phone or desktop display
- Ideas for guides, units, or accessibility
- Broken links, locale typos, or sitemap issues
- Partnership or press notes (keep it brief)