Domain-Monitor

Best Self-hosted Alternatives to Domain-Monitor

A curated collection of the 4 best self hosted alternatives to Domain-Monitor.

Domain-Monitor is a SaaS domain and website monitoring service that checks domain registration/expiry, DNS and WHOIS changes, and site uptime, and sends alerts to notify operators of expirations, outages, or suspicious changes.

Alternatives List

#1
MyIP (IPCheck.ing)

MyIP (IPCheck.ing)

MyIP (IPCheck.ing) is an open-source web IP toolbox that detects local/public IPs, runs DNS leak and WebRTC checks, speed/latency/MTR tests, availability and whois lookups.

MyIP (IPCheck.ing) screenshot

MyIP (branded as IPCheck.ing) is an open-source IP toolbox that provides browser- and server-based network diagnostics. It detects local and public IPs, shows geolocation/ASN details, and bundles utilities for availability, DNS and WebRTC testing.

Key Features

  • Detects and displays local and public IPv4/IPv6 addresses and associated metadata (country, region, ASN, geolocation).
  • IP search and detailed IP information lookup with geolocation and ASN data.
  • DNS Leak Test that reports DNS endpoints to evaluate VPN/proxy DNS leakage risk.
  • WebRTC connection detection to reveal IPs exposed via browser peer connections.
  • Network tests: speed test, global latency tests, ping, and MTR from multiple edge locations.
  • Availability/Censorship checks to verify whether major sites or a specific domain are reachable from different regions.
  • DNS resolver comparison across multiple sources to help identify DNS contamination or propagation issues.
  • Proxy rule testing to validate proxy configuration rules and behavior.
  • Whois search and MAC lookup utilities.
  • Browser fingerprinting options, keyboard shortcuts, dark/minimalist modes, PWA support and multi-language UI.

Use Cases

  • System administrators and security engineers diagnosing VPN, DNS or routing issues and checking for DNS leaks or WebRTC exposure.
  • Network-savvy users validating ISP-assigned IPs, performing speed/latency tests, and checking regional availability or censorship of services.
  • Operators who want a packaged set of IP/network diagnostics (whois, DNS, MTR, ping, traceroute-like tests) for troubleshooting and reporting.

Limitations and Considerations

  • Some features depend on browser capabilities (e.g., WebRTC detection and certain fingerprinting methods) and may not work in all browsers or when restrictive privacy extensions are active.
  • Geolocation and ASN accuracy depend on third-party IP/data providers; results may vary by region and provider freshness.
  • Map display requires a provider API key configuration for full map functionality; out-of-the-box deployments may show limited or no map view until configured.

MyIP (IPCheck.ing) provides a comprehensive, ready-to-deploy set of IP and network diagnostic tools intended for troubleshooting and investigation. It bundles multiple practical tests and utilities in a single open-source project suitable for both individual and operational use.

9.8kstars
1.1kforks
#2
Domain Locker

Domain Locker

Self-hostable domain portfolio manager that auto-fetches DNS/WHOIS/SSL data, tracks changes, monitors uptime, and sends configurable renewal and security alerts.

Domain Locker screenshot

Domain Locker is a self-hostable web application for keeping complete visibility of your domain name portfolio in one place. It collects and enriches domain data (such as DNS, WHOIS, and SSL details), monitors for changes and expirations, and provides dashboards and analytics across your domains.

Key Features

  • Centralized dashboard for domains, registrars/providers, and upcoming expirations
  • Auto-fetched domain data including DNS records, WHOIS/registrar info, IPs, SSL certificates, and subdomains
  • Change tracking and audit-style history for domain configuration updates
  • Uptime and basic performance monitoring with configurable alerting
  • Notifications via multiple channels including email and webhooks
  • Import/export and programmatic access via REST and GraphQL APIs
  • Portfolio metadata tracking (tags, notes, purchase price, renewal costs, valuation)

Use Cases

  • Track and manage a personal or business domain portfolio across multiple registrars
  • Get alerted before renewals and when DNS/SSL/WHOIS changes occur
  • Monitor availability and health of sites tied to critical domains

Domain Locker is useful for individuals, agencies, and teams who want a single place to manage domain operations and reduce the risk of missed renewals or unnoticed configuration changes.

1.2kstars
88forks
#3
DomainMOD

DomainMOD

Open source PHP app to manage domains, SSL certificates, registrars, hosting, DNS, IPs, and related internet assets, with reporting and optional WHM/cPanel data warehousing.

DomainMOD screenshot

DomainMOD is a self-hosted, open source application for managing domains and related internet assets from a single interface. It centralizes operational data like registrars, DNS, hosting, IP addresses, and SSL certificates, and can also import selected WHM/cPanel data into a built-in data warehouse for reporting.

Key Features

  • Domain portfolio tracking with bulk update tools
  • Management of SSL certificates, registrar accounts, DNS servers, web hosting, and IP addresses
  • Custom fields for storing additional domain and certificate metadata
  • Reporting and exports to analyze portfolio and operational data
  • Segments/filters for saved domain lists and targeted views
  • Task scheduler (cron-driven) for recurring jobs, including expiration notifications
  • Multilingual UI support
  • Optional Data Warehouse framework to import and report on WHM/cPanel server data

Use Cases

  • Keeping a complete inventory of domains and related infrastructure assets for IT teams
  • Managing larger domain portfolios with bulk operations, segments, and reporting
  • Importing WHM/cPanel server data to create consolidated operational reports

Limitations and Considerations

  • Data Warehouse import is currently focused on WHM/cPanel environments
  • Storing API keys/passwords inside the app is possible but carries security risk and should be carefully controlled

DomainMOD is a practical choice for teams or individuals who need a private, centralized system for domain and internet asset administration. Its reporting, custom fields, and automation via the task scheduler help keep portfolios organized and reduce the chance of missed renewals.

579stars
120forks
#4
Domain Watchdog

Domain Watchdog

Monitor domain names via RDAP, track full lifecycle history, receive alerts, and automatically attempt domain registration when domains enter deletion or become available.

Domain Watchdog screenshot

Domain Watchdog is an open-source application that monitors domain names using RDAP, collects structured WHOIS/RDAP data, tracks historical events, and can trigger automated purchase attempts when domains become available. It centralizes domain lifecycle data, notifies stakeholders on changes, and helps with backordering and acquisition workflows.

Key Features

  • RDAP lookups for structured domain, registrar, and entity data instead of legacy WHOIS parsing
  • Historical domain timeline showing creation, transfers, renewals, and deletion events
  • Automated domain backordering / auto-purchase triggers using provider APIs
  • Watchlists and status monitoring with prioritized deletion-forecast ordering
  • Notifications via email and pluggable webhooks (Slack, Mattermost, Discord, etc.)
  • Intelligent RDAP request handling with caching and rate-limit awareness
  • Docker-friendly deployment with environment-based configuration and customizable static content

Use Cases

  • Track and forecast domain deletions to prioritize backordering efforts
  • Monitor brand- or asset-related domains for ownership or status changes
  • Automate attempts to acquire expired domains via supported provider integrations

Limitations and Considerations

  • Backordering success depends on third-party provider APIs and does not guarantee acquisition
  • RDAP/WHOIS protocols do not support reliable reverse lookups; discovering all domains tied to an entity is limited
  • Some TLD registries expose limited RDAP history or enforce rate limits that affect completeness

Domain Watchdog is suited for domain portfolio managers, security teams, and domain investors who need structured monitoring and automated acquisition workflows. It integrates into existing tooling via APIs and webhooks and is designed for deployment via containers.

352stars
27forks

Why choose an open source alternative?

  • Data ownership: Keep your data on your own servers
  • No vendor lock-in: Freedom to switch or modify at any time
  • Cost savings: Reduce or eliminate subscription fees
  • Transparency: Audit the code and know exactly what's running