Education & Reference

Sparkle

Last updated 2026-08-19 · benchmark measured 2026-08-19 — deterministic & reproducible

Browser extension that replaces English words with Chinese as you browse the web.

Is Sparkle production-ready?

Legit.Show scores Sparkle 84 out of 100 — the simple average of its 5 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Sparkle (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Security; its weakest is Privacy. 5 of the seven frames returned a score; Performance and Accessibility were not measurable on this service and are recorded as null — not as zero. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — not measurable on this service (null — not scored as 0)
• Accessibility — not measurable on this service (null — not scored as 0)
• Security — 100/100
• Privacy — 70/100
• Reliability — 100/100
• Standards — 75/100
• Discoverability — 75/100

What we measured

• Security headers present: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 202 ms to first byte.
• Returns a proper 404 for unknown routes.
• 1 of 1 sampled routes reachable.
• Has a reachable privacy policy.
• Sets cookies / loads scripts with no consent prompt.
• Discoverable: OpenGraph image, canonical URL.

Who it's for

Chinese learners · HSK level students · Language learners · Vocabulary builders

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