AI & Agents

DeepL

Last updated 2026-08-03 · benchmark measured 2026-08-09 — deterministic & reproducible

DeepL provides AI-powered translation, writing, and voice tools for individuals and businesses.

Is DeepL production-ready?

Legit.Show scores DeepL 82 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on DeepL (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Security; its weakest is Performance. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 47/100
• Accessibility — 88/100
• Security — 100/100
• Privacy — 70/100
• Reliability — 100/100
• Standards — 92/100
• 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 — 188 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.
• Discoverable: structured data, OpenGraph image.

Who built it

Jarek Kutylowski · product account @DeepLcom

Who it's for

Businesses · Developers · Enterprises · Content teams · Global organizations

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