Productivity
BlockNSFW
Last updated 2026-08-15 · benchmark measured 2026-08-15 — deterministic & reproducible
Firefox extension that blocks adult and pornographic content before it loads.
80/100
Top 42% of 9,444 measured · #3 of 10 in distraction blocker
Legit Benchmark — the simple average of 7 measured frames. Frames we could not measure are left out of the average, never counted as zero. Every frame is shown below with its evidence.
Is BlockNSFW production-ready?
Legit.Show scores BlockNSFW 80 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on BlockNSFW (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 75/100
- Accessibility — 95/100
- Security — 90/100
- Privacy — 25/100
- Reliability — 100/100
- Standards — 92/100
- Discoverability — 85/100
What we measured
- Security headers present: CSP, HSTS, X-Frame-Options, X-Content-Type-Options.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 55 ms to first byte.
- Returns a proper 404 for unknown routes.
- 3 of 3 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: sitemap, OpenGraph image, canonical URL.
Who it's for
Parents · Students · Professionals · Families · Privacy-conscious users
Visit BlockNSFW → · Alternatives to BlockNSFW → · How this was measured →