Specifications
| Format | Challenges |
|---|---|
| Level | Beginner, Intermediate |
| Price | Free |
| Access | No registration |
| Activity | Rarely updated |
| Language | EN |
| Category | Web, Networks |
A twenty-level quiz on security basics that runs in the browser, with no account and no tooling. Some levels are multiple choice, some are short forms you submit. An evening is enough to finish it, and the honest outcome is a list of fundamentals that have gone soft.
Pros & cons
Pros
- Runs in the browser with no registration and no lab
- A cheap way to find out which basics you skipped
- Ends in an evening, so it costs nothing to try
Cons
- Twenty levels is the entire site and the material stays shallow
- Some questions describe tools and protocols no modern network still runs
- Scoring rewards recall, not whether you could actually do the task
Who it fits
Good as a warm-up or as interview warm-up, not as practice. Half an hour of it tells you whether you still remember what a subnet mask is.
Getting started
- Clear the levels in order: the difficulty is graded and skipping one leaves a hole
- Write down every answer you had to think about, that list is the real output
- Read the result as a list of gaps, not as a certificate
History
The site has been up for years and looks the same as it did: a fixed set of levels and a quiz. New material arrives slowly, which is why activity is marked as slowing rather than active. Checked, when every level still loaded. No task counter is published, so the level count is the only size on offer.