Question 1

What is Viewpo?

Accepted Answer

Viewpo is a web-based responsive design auditor. Paste any URL, see real browser screenshots at phone, tablet, laptop, and desktop sizes, and get an A–F grade with specific issues to fix. No install required.

Question 2

How does Viewpo work?

Accepted Answer

Paste your URL, pick your viewport sizes, and Viewpo renders your site using a real Chromium browser. It takes screenshots at each size, runs automated checks for overflow, touch targets, contrast, and accessibility, and gives you a grade from A to F with plain-language explanations.

Question 3

What does the A–F grade mean?

Accepted Answer

A means excellent — no significant responsive issues. B means good with minor issues. C needs work. D is poor with many issues. F means critical responsive failures. The grade is based on automated checks across all viewport sizes.

Question 4

Is Viewpo free?

Accepted Answer

Yes. The free tier includes 50 audits per month at 3 viewport sizes with shareable reports. No credit card required. Pro ($19/mo) and Team ($49/mo) plans add more viewports, batch audits, and team features.

Question 5

How is this different from Chrome DevTools?

Accepted Answer

Chrome DevTools simulates one viewport at a time and requires manual inspection. Viewpo shows your site at multiple viewports simultaneously, runs automated responsive checks, gives you a grade, and generates a shareable report — all in seconds.

Question 6

Does Viewpo work with sites that block iframes?

Accepted Answer

Yes. Most free responsive checkers use iframes, which fail on sites with X-Frame-Options or CSP headers. Viewpo uses a real Chromium browser, so it works on every site regardless of iframe restrictions.

Question 7

Can I share audit results?

Accepted Answer

Yes. Every audit generates a unique, shareable URL. Anyone can view the report without signing up. The link includes an OG preview card showing the grade and viewport thumbnails.

Question 8

Does Viewpo have an API?

Accepted Answer

Yes. The HTTP API accepts a URL and returns screenshots, audit results, and an A–F grade as structured JSON. It works with any HTTP client — curl, fetch, or AI coding agents like Claude Code and Cursor.

Question 9

Can AI agents use Viewpo?

Accepted Answer

Yes. AI coding agents can call the Viewpo API to audit their own output. Write CSS → call Viewpo → see overflow issues → fix → re-audit → Grade A. It closes the visual feedback loop that no AI tool has natively.

Question 10

What checks does Viewpo run?

Accepted Answer

Overflow (elements wider than the screen), touch targets (buttons too small to tap), image issues (missing alt text, oversized images), contrast (text readability), and accessibility (landmarks, heading order, unlabelled inputs). Core Web Vitals and SEO analysis are coming soon.

Question 11

What browsers does Viewpo use for rendering?

Accepted Answer

Viewpo uses Chromium running on Cloudflare’s global network. This gives accurate, real-browser rendering — not iframe simulation or CSS zoom tricks.

Question 12

Is my data safe?

Accepted Answer

Yes. Viewpo never stores your site content. Screenshots are cached temporarily for report sharing, then deleted. Viewpo uses privacy-first Plausible analytics with no cookies.

Question 13

Is Viewpo made by Little Bear Apps?

Accepted Answer

Yes. Viewpo is built by Little Bear Apps, an Australian indie software studio. I build practical, privacy-friendly developer tools.

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