Test large powers and division-by-zero inputs while separating overflow, error, and infinity.
calculatorqueen.comProduct preview pending
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Not verified
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Organic
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Security scan
Grade B
HTTP header check, not a full security audit.
Freshness
Updated 28 Sept 2026
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From the maker
Many viral calculator tricks blur together several different ideas. I built this lab so learners can run the inputs and then see why overflow, an Infinity value, an error message, and a mathematical limit are not the same thing.
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1mo ago
Launch age
14.8%
Listing CTR
B
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Listing readiness score 70.
Listing readiness
70
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Grade B · 76/100 · HTTP headers only
Checks the site's current HTTP response headers. This is not a penetration test or a general safety certification.
Scanned 27 Aug 2026, 10:40
Fix first
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Content-Security-Policy
Review in context
Good, with room to improve
You're on the right track. Address the warnings above - adding a Content-Security-Policy or enabling HSTS can push you to an A. Fix the issues and hit "Rescan" to update your grade.
AI makes it easy to build apps fast - but speed without security puts users at risk. We scan every listed app's HTTP headers to surface who's shipping responsibly. Security headers like HSTS, CSP, and X-Frame-Options are the baseline defenses every web app should have. A good score tells users: "this builder cares about my safety, not just shipping quickly."
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