What is GuardDex?
GuardDex is a self-hosted security monitor for your home network and family devices. It watches for threats in real time, alerts you in plain English, and keeps a record of everything it catches — without sending your data to any third party.
✓ What GuardDex Does
- 🛡Phishing detectionScans URLs against 44 protected brands before you visit them
- 🔍DNS monitoringScans your network DNS logs for malware, trackers, and C2 beacons
- 🚨Network threat detectionARP spoofing, MITM attacks, port scans, rogue DNS, SSL stripping
- 📧Breach monitoringChecks emails, phones, and IPs against HIBP, LeakCheck, and Shodan
- 📲Plain-English alertsPush, email, and SMS notifications that a non-technical person can act on
- 🌐Browser extensionReal-time page scanning overlay in Chrome, Firefox, and Brave
- 📱Android appSecurity gateway browser with built-in phishing warnings and ad blocking
- 📊Threat intelligenceIP reputation via VirusTotal, OTX, GreyNoise, Spamhaus, AbuseIPDB
✕ What GuardDex Does NOT Do
- 🚫VPN / traffic encryptionGuardDex does not encrypt your internet connection or hide your IP from websites
- 🚫AntivirusDoes not scan files on your devices for malware — it monitors network behavior and URLs
- 🚫FirewallDoes not block network traffic at the packet level — DNS blocking is advisory, not enforced at layer 3
- 🚫Data broker removalDoes not submit opt-out requests to data brokers on your behalf
- 🚫Password managementDoes not store or autofill passwords
- 🚫Encrypted messagingDoes not provide a secure messaging channel
- 🚫Cloud backupYour data stays on your server — no cloud sync, no remote access without Tailscale
🧱 How GuardDex Fits Into a Full Security Picture
GuardDex is your network-layer and behavioral monitor. The best security posture layers multiple tools — each covering what the others miss.
1GuardDex (you are here)Network monitoring, DNS scanning, phishing detection, breach alerts — your always-on home security monitor
2VPN (ProtonVPN / Mullvad)Encrypts traffic outside your home, hides your IP from websites, protects on public Wi-Fi
3Password Manager (Bitwarden)Strong unique passwords per site, autofill phishing protection (won't autofill on fake domains)
4Data Broker Removal (DeleteMe / Optery)Removes your personal info from people-search sites, reduces targeted phishing and spam
📋 Feature Coverage at a Glance
| Threat / Need | GuardDex | VPN | Password Mgr | Data Broker Removal |
|---|---|---|---|---|
| Phishing link protection | Yes | No | Partial | No |
| Network MITM / ARP attack | Yes | Partial | No | No |
| DNS malware blocking | Yes | No | No | No |
| Credential breach alerts | Yes | No | Partial | No |
| Ad / tracker blocking | Yes | No | No | No |
| Traffic encryption on public Wi-Fi | No | Yes | No | No |
| IP address privacy from websites | No | Yes | No | No |
| Strong unique passwords + autofill | No | No | Yes | No |
| Remove info from people-search sites | No | No | No | Yes |
| Targeted phishing / spam reduction | Detects | No | No | Prevents |
Self-hosted means your data stays yours. GuardDex runs on hardware you own, on your network. Your scan history, breach results, DNS logs, and alert records never leave your server. There is no GuardDex cloud, no analytics collection, and no subscription. The trade-off: you manage the hardware and updates.
Want to fill the gaps?
See our curated list of privacy and security tools that complement GuardDex — with links and brief descriptions of what each one does.
View Recommended Tools →