Productivity
InboxFlood
Last updated 2026-07-21 · benchmark checked 2026-08-09 · unchanged since 2026-08-08 — deterministic & reproducible
InboxFlood subscribes email addresses to newsletters at scale for testing and research.
Is InboxFlood production-ready?
Legit.Show scores InboxFlood 77 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on InboxFlood (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Privacy; its weakest is Security. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 87/100
- Accessibility — 86/100
- Security — 25/100
- Privacy — 100/100
- Reliability — 75/100
- Standards — 92/100
- Discoverability — 72/100
What we measured
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 1371 ms to first byte.
- 3 of 3 sampled routes reachable.
- Has a reachable privacy policy.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: sitemap, canonical URL.
Who it's for
Marketers · Developers · Researchers · QA testers · Email professionals
Pricing
Free (10 subscriptions/month); Pro $9/month (100/month); Business $19/month (500/month); Enterprise $39/month (2,000/month); one-time top-ups available
Visit InboxFlood → · Alternatives to InboxFlood → · How this was measured →