Products

ALTCHA

The privacy-friendly CAPTCHA that stops bots and spam.

altcha.org SourceSecurity & Privacy / Fraud Prevention & Verification

AI Benchmark
Desktop
Mobile
Monthly visits
229.3K
Down17.0%MoMOct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
$20.41/mo
Higher than 57% of peersNiche median $19/mo
Launched
2y ago
2023-11-16 · Est.

Traffic

Monthly visitsData through Oct 2026
Events12 changes

Marketing moves

Launches, search & content, referrals, promotions
  • New product launchLaunch

    Nov 16, 2023 · 2y agoWebsite

Open Source & Self-Hosting

GitHub · MCP / Skill
Last commit 2026-10-02
GitHub Stars
Public repo
Forks
—
License
See repository
Primary language
—

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Direct54%
  • Referrals31%
  • Organic Search14%
  • Other1%

Countries

  • United States15%
  • Ecuador8%
  • Mexico7%
  • Brazil7%
  • France7%

Search

Domain authority —Domain registered 2023-11-16

KeywordMonthly volume
captcha122.6K
altcha5,690
altcha captcha300
altcha sentinel260
what are my options for adding captcha for my website250

Traffic data: Vaneform

Pricing

Cloud
€ 47 /month / € 470 /year
API capacity: Fair-use · Sites: 3
Cloud Plus
€ 137 /month / € 1,370 /year
API capacity: 10x Cloud · Sites: 10
Cloud Max
€ 187 /month
API capacity: 20x Cloud · Sites: 50
Professional
€ 99 /month
Up to 3 instances · Up to 10 accounts · Up to 10 users
Enterprise
€ 799 /month
Unlimited instances and clusters · Unlimited accounts and users
Enterprise Lifetime
Contact sales
WordPress Professional
€ 18.90 /month
Extra Sites: € 4.90 / site · Protection for 22+ plugins · Unlimited verifications
WordPress Lifetime
€ 499 one-time
Extra Sites: € 49 / site
WordPress Agency
€ 119.90 /month
Up to 100 sites per license

Trial: Starting at € 18.90 / month with a free 14-day trial. · Enterprise custom tier · Observed 2026-11-05 · Pricing page

Entry price $20.41/mo, Higher than 57% of peers; “Fraud Prevention & Verification” median is $19/mo.View pricing benchmark

Pages & changes

Tracked since 2026-11-04

Key pages

Weekly snapshots

Changes

  1. Nov 1 · 13d ago

    Homepage headline (H1) changed to “The privacy-friendly CAPTCHA that stops bots and spam.”Positioning

    Next-Gen Captcha and Bot Protection→The privacy-friendly CAPTCHA that stops bots and spam.

    At the time: 229.3K visits/mo11 concurrent moves
  2. Nov 1 · 13d ago

    Removed technology: Amazon CloudFrontFeatures

    Amazon CloudFront→—

    At the time: 229.3K visits/mo11 concurrent moves
  3. Nov 1 · 13d ago

    Removed technology: Amazon Web ServicesFeatures

    Amazon Web Services→—

    At the time: 229.3K visits/mo11 concurrent moves
  4. Nov 1 · 13d ago

    Removed technology: AstroFeatures

    Astro→—

    At the time: 229.3K visits/mo11 concurrent moves
  5. Nov 1 · 13d ago

    Removed technology: HSTSFeatures

    HSTS→—

    At the time: 229.3K visits/mo11 concurrent moves
  6. Nov 1 · 13d ago

    Adopted technology: Node.jsFeatures

    —→Node.js

    At the time: 229.3K visits/mo11 concurrent moves

Design

First-screen visual analysis & :root CSS

Minimal Monochrome (Light canvas, airy density) featuring split copy & visual layout and interactive hero demo / tool visuals.

First-screen preview · click to zoom

First-screen pitch & conversion flow

“The privacy-friendly CAPTCHA that stops bots and spam.”

Split Copy & Visual hero structure paired with start free / sign up CTA and customer / press logo strip.

Conversion path: Split Copy & Visual + Interactive Hero Demo / Tool → Start Free / Sign Up · Trust bar: Customer / Press Logo Strip

Palette · click to copy

5-D design score7.1 / 10
Typography
7.0
Color & Contrast
7.0
Layout & Spacing
8.0
Craft & Polish
7.0
Distinctiveness
6.0

Structure

Fonts
Inter
Primary visual
Interactive Hero Demo / Tool
Conversion CTA
Start Free / Sign Up
Social proof
Customer / Press Logo Strip
Navigation
Full-Width Top Bar
Theme & density
Light · Airy
Corners & depth
Medium Radius · With shadow
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 (with Enterprise Clean)

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

## Design Tokens

```css
:root {
  --background: #ffffff;
  --surface: #f7f8fa;
  --foreground: #111111;
  --muted-foreground: #6b7280;
  --accent: #2f3fe0;
  --radius: 8px;
  --font-heading: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #FFFFFF (~72%) · Surface #F7F8FA (~12%) · Text #111111 (~8%) · Muted Text #6B7280 (~5%) · Accent #2F3FE0 (~3%). 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: Light · Airy
- Border radius & elevation: Medium Radius; use elevation shadows to separate layers
- Primary visual medium: Interactive Hero Demo / Tool
- Conversion CTA: Start Free / Sign Up · Trust bar uses Customer / Press Logo Strip
- Headline hook: Category Positioning Anchor
- Hero components: Customer Logo Wall
- Spatial layout notes: Split Copy & Visual hero structure paired with start free / sign up CTA and customer / press logo strip.
- Visual summary: Minimal Monochrome (Light canvas, airy density) featuring split copy & visual layout and interactive hero demo / tool 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 does ALTCHA cost?
Cloud: € 47 /month / € 470 /year; Cloud Plus: € 137 /month / € 1,370 /year; Cloud Max: € 187 /month; Professional: € 99 /month; Enterprise: € 799 /month; Enterprise Lifetime: Contact sales; WordPress Professional: € 18.90 /month; WordPress Lifetime: € 499 one-time; WordPress Agency: € 119.90 /month. Observed 2026-11-05. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does ALTCHA get?
Vaneform estimates 229.3K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is ALTCHA and what platforms does it support?
ALTCHA is catalogued under Fraud Prevention & Verification: The privacy-friendly CAPTCHA that stops bots and spam.. Supported platforms: API.
Is ALTCHA open source?
ALTCHA has a public repository (https://github.com/altcha-org/altcha-lib-cpp) with its source repository published.Source

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