Education & Reference
DailyDiff
Last updated 2026-07-11 · benchmark measured 2026-08-09 — deterministic & reproducible
A free daily puzzle for learning the subtle differences between English synonyms.
Is DailyDiff production-ready?
Legit.Show scores DailyDiff 87 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on DailyDiff (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Accessibility; its weakest is Security. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 90/100
- Accessibility — 100/100
- Security — 45/100
- Privacy — 100/100
- Reliability — 75/100
- Standards — 100/100
- Discoverability — 100/100
What we measured
- Security headers present: X-Content-Type-Options, Referrer-Policy.
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 249 ms to first byte.
- 3 of 3 sampled routes reachable.
- Has a reachable privacy policy.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: structured data, sitemap, OpenGraph image, canonical URL.
Who built it
LuYang Li
Who it's for
English learners · Language enthusiasts · Vocabulary builders
Pricing
Free to play
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