Developer Tools

ScreenSize.net

Last updated 2026-06-25 · benchmark measured 2026-09-23 — deterministic & reproducible

Live tool that checks your screen resolution, viewport size, and pixel ratio in the browser.

Are you the maker of ScreenSize.net? Claim this listing. It is free, takes a meta tag, a DNS record or GitHub admin rights, and never changes the score.

Launched something? Add your product, free.

To cite this score: legit.show/s/screensize-net/2026-09-23. That address never changes; this page moves with every re-measure.

Legit.Show scored ScreenSize.net 81/100 on 2026-09-23, measured across all 7 frames from its public surface. legit.show/s/screensize-net/2026-09-23

Is ScreenSize.net production-ready?

Legit.Show scores ScreenSize.net 81 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on ScreenSize.net (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 79/100
• Accessibility — 96/100
• Security — 55/100
  How this compares across the catalogue: The Web Security Baseline
• Privacy — 45/100
  How this compares across the catalogue: The Privacy Gap
• Reliability — 100/100
• Standards — 92/100
• Discoverability — 100/100

What we measured

• Security headers present: HSTS, X-Content-Type-Options.
• No Content-Security-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 126 ms to first byte.
• Returns a proper 404 for unknown routes.
• 3 of 3 sampled routes reachable.
• Has a reachable privacy policy.
• Sets cookies / loads scripts with no consent prompt.

Who it's for

Developers · Designers · QA teams · Web developers

Pricing

Free

Sources and updates

Description

Taken from screensize.net's own website on 2026-06-25.

Operator

ScreenSize.net, as named in screensize.net's terms, privacy page or footer.

Benchmark

Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-09-23.

Put together from public information, without ScreenSize.net's involvement. If anything here is wrong, tell us and a person will check it.

Visit ScreenSize.net → · Alternatives to ScreenSize.net → · How this was measured →