Observed arrival · 2026-09-24
Line Zero’s hosted cyber ranges
Line Zero runs browser-based cybersecurity labs and live competitions for high school programs, student teams, and community colleges.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- High school CTE and college cybersecurity programs
- Worth noticing
- The site describes 6–8-hour deployment days, with student environments torn down and results exported afterward.
Field notes
The listed Redline range pairs private browser-based Kali desktops with vulnerable targets, including Linux, container, cloud-misconfiguration, and AI-security examples. Line Zero says it checks deployments before students arrive, exports results after the session, and deletes the environments; the page also lists on-site event support from its Phoenix base.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue