Guides
A clearer view of the web.
Learn how to build responsive websites, choose breakpoints, check mobile layouts and give useful feedback.
All guides

November 6, 2026
Which Screen Sizes to Use When Reviewing a Website
If you have visitor data, use the most common desktop, tablet, and phone sizes. If not, start with 1920 by 1080, 820 by 1180, and 390 by 844.
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November 6, 2026
How to Test Your Website Before Launch: A Checklist
Before you go live, test your site by walking the customer's journeys: forms, phone then desktop and tablet layouts, menus, and key actions.
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November 6, 2026
How to Give Useful Feedback on a Website Design
On each screen, record where you are, what you noticed, what you expected, and why the difference matters. Then describe the outcome you need.
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