Your cable internet is slow and your provider says everything is fine?
DOCSight proves them wrong.
DOCSight monitors your cable internet connection 24/7 and collects the hard evidence you need to hold your ISP accountable. One click generates a complaint letter with real data your provider can't ignore.
For cable internet (DOCSIS/coax) only — Vodafone Kabel, Pyur, Tele Columbus, Virgin Media, Comcast, Spectrum, and others.
docker run -d --name docsight -p 8765:8765 -v docsight_data:/data ghcr.io/itsdnns/docsight:latestOpen http://localhost:8765, enter your router login, done. Full installation guide →
DOCSight v2.0 is currently in beta testing! We're looking for community feedback.
Try it: docker run -d -p 8766:8765 -v docsight_v2_data:/data ghcr.io/itsdnns/docsight:v2-dev
What's new: Complete UI redesign, modular architecture, cross-source correlation
Migration safe: Your v1 data is automatically migrated. No data loss!
Report issues: GitHub Issues with tag v2-preview
| ✅ You have cable internet (coax/DOCSIS) | DOCSight is built for this |
| ✅ Your internet drops out or is slower than what you're paying for | DOCSight documents it |
| ✅ Your ISP says "everything is fine on our end" | DOCSight gives you proof |
| ❌ You have DSL or fiber | This tool won't work for you |
| 🏠 Runs 100% locally | No cloud, no external servers |
| 🔒 Nothing leaves your network | Your data is never uploaded anywhere |
| 📖 Open source | All code is public and verifiable |
| 🔐 Credentials encrypted | Router login encrypted at rest (AES-128) |
| Feature | Description |
|---|---|
| Live Dashboard | Real-time channel data with health assessment and metric cards |
| Signal Trends | Interactive charts with DOCSIS reference zones (day/week/month) |
| Event Log | Automatic anomaly detection with modulation watchdog |
| Speedtest Integration | Speed test history from Speedtest Tracker |
| Incident Journal | Document ISP issues with attachments |
| Complaint Generator | Editable ISP letter + downloadable technical PDF |
| Channel Timeline | Per-channel power, SNR, error, and modulation history over time |
| Home Assistant | MQTT Auto-Discovery with per-channel sensors |
| BQM Integration | ThinkBroadband broadband quality graphs |
| LLM Export | Structured reports for AI analysis |
4 languages (EN/DE/FR/ES) · Light/Dark mode · Setup wizard · Optional authentication
Click to expand
| Dashboard (Dark) | Dashboard (Light) |
|---|---|
|
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| Signal Trends | Health Assessment |
|---|---|
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| Speedtest Tracker | Incident Journal |
|---|---|
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| Channel Timeline | Event Log |
|---|---|
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| Status | |
|---|---|
| AVM Fritz!Box Cable (6590, 6660, 6690) | ✅ Fully supported |
| Vodafone Station (Arris TG3442DE) | 🔜 Planned (roadmap) |
| Technicolor / Sagemcom | 🔜 Planned |
| Other DOCSIS modems | Contributions welcome! See Adding Modem Support |
Works with any DOCSIS cable provider: Vodafone, Pyur/Tele Columbus, eazy, Magenta (AT), UPC (CH), Virgin Media (UK), and others. Default signal thresholds are based on VFKD guidelines and can be customized in thresholds.json for your ISP.
- Docker (or any OCI-compatible container runtime)
- A supported DOCSIS cable modem or router (see above)
- MQTT broker (optional, for Home Assistant)
📚 Wiki — Full documentation, guides, and DOCSIS glossary
See CONTRIBUTING.md. Please open an issue before working on new features.
Next: v2.0 — Unified Collector Architecture
| Feature | Issue |
|---|---|
| Unified Collector Architecture | #23 |
| FritzBox Event Log Integration | #17 |
| OFDMA Channel Analysis | #18 |
| Notification System | #19 |
| Ping Monitor | #20 |
| Modulation Watchdog & Power Drift | #21 |
| Smokeping Integration | #22 |
| Vodafone Station Support | #14 |
| Technicolor TC4400 Support | #24 |
See the full roadmap in the wiki for long-term goals and modem support plans.
See GitHub Releases.
If DOCSight helps you, consider buying me a coffee ☕
