Education & Reference

SignLemon

Last updated 2026-07-26 · benchmark checked 2026-08-09 · unchanged since 2026-08-08 — deterministic & reproducible

SignLemon is a platform for learning sign language through tutorials and animated gestures.

Is SignLemon production-ready?

Legit.Show scores SignLemon 74 out of 100 — the simple average of its 6 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on SignLemon (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Privacy; its weakest is Discoverability. 6 of the seven frames returned a score; Accessibility was not measurable on this service and is recorded as null — not as zero. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 80/100
• Accessibility — not measurable on this service (null — not scored as 0)
• Security — 45/100
• Privacy — 100/100
• Reliability — 100/100
• Standards — 75/100
• Discoverability — 45/100

What we measured

• Security headers present: HSTS.
• No Content-Security-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 195 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

Kids · Schools · Communities · Sign language learners

Visit SignLemon → · Alternatives to SignLemon → · How this was measured →