Productivity
Mattermost
Last updated 2026-08-03 · benchmark measured 2026-08-03 — deterministic & reproducible
Mattermost is a self-hostable team messaging and collaboration platform for enterprises.
Is Mattermost production-ready?
Legit.Show scores Mattermost 89 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Mattermost (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 — 51/100
- Accessibility — 86/100
- Security — 100/100
- Privacy — 100/100
- Reliability — 100/100
- Standards — 89/100
- Discoverability — 100/100
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 — 222 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, sitemap, OpenGraph image, canonical URL.
Who built it
Ian Tien · product account @Mattermost
Who it's for
Enterprises · Government agencies · Critical infrastructure organizations · Defense and military · DevSecOps teams
Pricing
Free limited-use edition available; Professional and Enterprise Advanced plans available (contact sales for pricing)