Products
AI Benchmark
Desktop
Mobile
Monthly visits
69.3K
Down29.6%MoMOct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
Free
No monthly subscription pricing
Launched
8y ago
2018-01-24 · Est.

Traffic

Monthly visitsData through Oct 2026

Marketing moves

Launches, search & content, referrals, promotions
  • Launched on Product HuntLaunch

    Free class for web security

    Apr 21, 2018 · 8y agoLaunch page

  • Launched on Show HN (33 pts · 4 comments)Launch

    Hacker101 – A Free Web Security Class

    Jan 24, 2018 · 8y agoLaunch page

Open Source & Self-Hosting

GitHub · MCP / Skill
Last commit 2026-11-07
GitHub Stars
★ 483
Forks
102
License
CC-BY-NC-SA-4.0
Primary language
Go

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Direct54%
  • Organic Search32%
  • Referrals6%
  • Social4%
  • Other4%

Countries

  • United States18%
  • India14%
  • Netherlands12%
  • United Kingdom10%
  • Brazil5%

Search

Domain authority —Domain registered 2000-07-27

KeywordMonthly volume
hacker1011,400
hackerone ctf930
hacker 101490
free ctf150
ctf hackerone 101140

Traffic data: Vaneform

Pricing

Website does not list public plan prices.

Trial: None · Observed 2026-11-03 · Source page

Pages & changes

Tracked since 2018-04-21

Key pages

Weekly snapshots
www.hacker101.com/ Snapshot 2026-11-04

Changes

No pricing, plan, or positioning changes detected since tracking started.

Design

First-screen visual analysis & :root CSS

Minimal Monochrome (Dark canvas, balanced density) featuring split copy & visual layout and photography / live video visuals.

First-screen preview · click to zoom

First-screen pitch & conversion flow

“LEARN TO HACK”

Split Copy & Visual hero structure paired with start free / sign up CTA and no explicit trust bar.

Conversion path: Split Copy & Visual + Photography / Live Video → Start Free / Sign Up

Palette · click to copy

5-D design score6.3 / 10
Typography
6.0
Color & Contrast
7.0
Layout & Spacing
7.0
Craft & Polish
6.0
Distinctiveness
5.0

Structure

Fonts
Montserrat
Primary visual
Photography / Live Video
Conversion CTA
Start Free / Sign Up
Social proof
No Explicit Trust Bar
Navigation
Full-Width Top Bar
Theme & density
Dark · Balanced
Corners & depth
Small Radius · Hairline borders
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Minimal Monochrome

Monochrome palette with a single accent color, hairline dividers, and generous whitespace.

## Design Tokens

```css
:root {
  --background: #171717;
  --surface: #303030;
  --foreground: #eaeaea;
  --muted-foreground: #bfbfbf;
  --accent: #e50078;
  --radius: 4px;
  --font-heading: "Montserrat", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Montserrat", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #171717 (~48%) · Surface #303030 (~32%) · Text #EAEAEA (~7%) · Muted Text #BFBFBF (~11%) · Accent #E50078 (~2%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Split Copy & Visual
- Navigation: Full-Width Top Bar
- Theme & density: Dark · Balanced
- Border radius & elevation: Small Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Photography / Live Video
- Conversion CTA: Start Free / Sign Up
- Headline hook: Direct Action Command
- Hero components: Custom Illustration
- Spatial layout notes: Split Copy & Visual hero structure paired with start free / sign up CTA and no explicit trust bar.
- Visual summary: Minimal Monochrome (Dark canvas, balanced density) featuring split copy & visual layout and photography / live video visuals.

## Avoid

- Multi-stop neon gradients
- Heavy drop shadows
- More than one competing accent color

Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.

Questions & evidence

How much website traffic does Hacker101 get?
Vaneform estimates 69.3K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Hacker101 and what platforms does it support?
Hacker101 is catalogued under Skills & Online Courses: LEARN TO HACK. Supported platforms: Web.
Is Hacker101 open source?
Hacker101 has a public repository (https://github.com/Hacker0x01/hacker101) under the CC-BY-NC-SA-4.0 license, recording 483 GitHub stars.Source

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