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em-content-insights

v1.2.0

Published

Privacy-first post analytics for EmDash CMS. Per-post views, read rate, time on page, and referrer tracking — all self-hosted.

Vulnerabilities

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Links

Git

Maintainers

facuzarate04facuzarate04

Keywords

emdashemdash-pluginanalyticspost-analyticsprivacy

Readme

em-content-insights

Privacy-first post analytics for EmDash CMS. Know how your content performs without compromising your readers' privacy.

No cookies. No fingerprinting. No third-party services. All data stays in your EmDash instance.

What you get

  • Views per post with unique visitor approximation
  • Read rate based on real scroll depth and attention time
  • Scroll depth milestones (25%, 50%, 75%, 100%)
  • Engaged views (10s+ active attention with interaction)
  • Recirculation tracking (clicks to internal links)
  • Time on page via active attention tracking (visible + focused, 60s inactivity timeout)
  • Referrer breakdown showing where your traffic comes from
  • Trend indicators comparing current period vs previous
  • Admin dashboard widget with top posts at a glance
  • Full analytics page with timeseries charts, scroll depth funnel, top posts table, and referrer pie chart

Quick start

1. Install

npm install em-content-insights

2. Register the plugin

// astro.config.mjs
import { postAnalytics } from "em-content-insights";

export default defineConfig({
  integrations: [
    emdash({
      plugins: [postAnalytics()],
    }),
  ],
});

3. Add the beacon to your layout

---
// src/layouts/Base.astro (or your base layout)
import BeaconScript from "em-content-insights/astro";
---

<html>
  <body>
    <slot />
    <BeaconScript />
  </body>
</html>

That's it. The <BeaconScript /> component inlines a lightweight tracking script (~1.5KB) that automatically detects post content and starts tracking.

Configuration

The plugin works out of the box with zero configuration. Optionally customize the path prefix:

postAnalytics({
  pathPrefix: "/blog/", // default: "/posts/"
})

Or change it at runtime from the admin UI under Settings > Post Analytics > Post URL Prefix.

How it works

Tracking

  1. The <BeaconScript /> component renders an inline script on every page
  2. On page load, it sends a view event via navigator.sendBeacon()
  3. As the reader scrolls, it sends scroll events at 25%, 50%, 75%, and 100% depth milestones
  4. After 10 seconds of active attention with interaction, it sends an engaged event
  5. When the reader has scrolled 75%+ and spent enough time reading (estimated from content length), it sends a read event
  6. If the reader clicks an internal link, it sends a recirc event
  7. When the reader leaves, it sends a ping with total active attention time

All events hit a public plugin route (POST /_emdash/api/plugins/post-analytics/track) that validates the payload, filters bots, and stores the data.

Storage

The plugin uses a hybrid storage model:

  • Raw events (events collection) preserve full granularity for future analysis
  • Daily aggregates (daily_stats collection) power fast admin queries

The admin UI reads from daily aggregates, so dashboard performance is constant regardless of traffic volume.

Privacy

| Concern | How it's handled | |---------|-----------------| | Cookies | None | | IP addresses | Hashed with a daily-rotating salt. Raw IPs are never stored. | | Fingerprinting | None | | Cross-page tracking | None. Each pageview is independent. | | Do Not Track | Honored. If navigator.doNotTrack === "1", the beacon does nothing. | | Bot filtering | User-Agent based filtering for known crawlers |

Admin UI

Dashboard widget

Shows on the EmDash admin home page:

  • Total views and visitors for the last 7 days with trend indicators
  • Top 5 posts ranked by views

Analytics page

Accessible from the admin sidebar under Post Insights:

  • Date range selector (7 / 30 days)
  • Stat cards: total views, unique visitors, read rate, avg time on page
  • Timeseries chart with views, engaged views, and reads over time
  • Scroll depth funnel chart
  • Top posts table sortable by views, visitors, read rate, and avg time
  • Referrer pie chart
  • Country breakdown (when running on Cloudflare)

API routes

All routes are available at /_emdash/api/plugins/post-analytics/.

| Route | Auth | Method | Description | |-------|------|--------|-------------| | track | Public | POST | Receives beacon events | | stats | Admin | GET | Aggregated stats. Params: pathname, days | | top-posts | Admin | GET | Ranked posts. Params: days, limit |

Requirements

  • EmDash ^0.1.0
  • Astro ^6.0.0
  • No external services or API keys required

Development

git clone https://github.com/facuzarate04/em-content-insights.git
cd em-content-insights
npm install
npm test

Running tests

npm test           # single run
npm run test:watch # watch mode

Project structure

src/
  index.ts                # Plugin descriptor (build time)
  sandbox-entry.ts        # Plugin definition: hooks, routes, admin UI (runtime)
  beacon.ts               # Client-side tracking script generator
  astro/
    BeaconScript.astro    # Drop-in Astro component for the tracking beacon
  __tests__/              # Vitest test suite

Capabilities

| Capability | Purpose | |-----------|---------| | read:content | Resolve post titles for admin display | | network:fetch | Reserved for future license validation | | page:inject | Auto-inject beacon via page:fragments (when supported by EmDash runtime) |

License

AGPL-3.0