Domain Command app icon
Domain Command
Expiry Alerts & WHOIS Lookup
Tomas Kafka
GET Free · In-App Purchases
Domain Command app showing domain list with expiry tracking
Domain Command domain detail view with SSL certificate information
Domain Command showing WHOIS data and SSL certificate status

You have domains. Some have SSL certificates. All of them expire. This app makes sure you know before they do.

Domain Command performs WHOIS and RDAP lookups directly from your iPhone or Mac — no middleman server, no cloud processing, no data collection. Your domain portfolio stays on your device and in your iCloud, period.

Track up to 3 domains free with all features. A single in-app purchase unlocks unlimited domains, widgets, iCloud sync, CSV import/export, and per-domain notification settings. One-time purchase — no subscription, ever.

Why Domain Command

  • Monitoring

    Domain & SSL Monitoring

    Track domain expiry dates, registrar info, and nameservers via WHOIS/RDAP. Monitor SSL/TLS certificates — issuer, validity dates, and status at a glance.

  • Notifications

    Notifications That Just Work

    Get notified before anything expires — 30, 14, and 7 days out. Notifications are scheduled locally via iOS. The system owns them once set — they fire even if the app is killed. No server ping required.

  • Device

    Fully On-Device

    All lookups happen on your device using public WHOIS and RDAP protocols. No middleman, no cloud processing. Works offline — cached data and pre-scheduled notifications need no internet.

  • Globe

    Smart WHOIS & RDAP

    Uses RDAP (structured JSON) where available, WHOIS with format-specific parsers as fallback. Supports 200+ TLDs. If a format is unrecognized, enter expiry manually and optionally report it for the next update.

  • Widget

    Home Screen Widgets

    Glance at your most urgent renewals without opening the app. Small, medium, and large widget sizes. Single-domain widgets too.

  • Sync

    iCloud Sync

    Keep your domains in sync across iPhone and Mac via iCloud. Still no server — Apple's CloudKit handles it, and the developer never sees your data.

Built for Developers & Sysadmins

  • Information-dense UI inspired by mission control status boards
  • Domain names and expiry data in monospaced type — because they are data
  • Color-coded urgency: green (nominal), amber (advisory), red (critical)
  • Pull-to-refresh runs a full WHOIS + SSL check on all your domains
  • Batch add: paste multiple domains at once
  • CSV import and export for your records
  • Per-domain custom notification intervals

One-Time Purchase. No Subscription. Ever.

Most domain trackers charge you monthly to run a cron job on their server. Domain Command has no server. WHOIS is a public protocol — your device queries it directly. That means zero recurring costs for the developer, and zero subscription for you. Pay once, use it forever.

Free

Track up to 3 domains with all features. No time limit, no nag screens.

Pro one-time

Unlimited domains, home screen widgets, iCloud sync, CSV import/export, per-domain notification settings.

Privacy by Architecture

  • No analytics, no tracking, no third-party SDKs
  • No accounts, no sign-ups, no email collection
  • The only network calls are WHOIS/RDAP lookups to public registry servers and SSL checks
  • One optional, opt-in feature: if the app cannot parse a WHOIS response, you can send the public registry record to the developer to improve parsing. No personal data, ever
  • iCloud sync is Apple's infrastructure — the developer never sees your data

Read the full Privacy Policy

Frequently Asked Questions

Does Domain Command require a server or backend?

No. Domain Command is fully offline. WHOIS and RDAP lookups go directly from your device to public registry servers. Notifications are scheduled locally via iOS. iCloud sync uses Apple's infrastructure. The developer operates no server.

How does it check domain expiry dates?

Domain Command uses two protocols: RDAP (Registration Data Access Protocol), which returns structured JSON and is preferred, and WHOIS via raw TCP connections to port 43 as a fallback. It supports 200+ TLDs. If neither protocol returns parseable data, you can enter the expiry date manually.

Is this a subscription app?

No. Track up to 3 domains free with all features. A single in-app purchase unlocks unlimited domains, widgets, iCloud sync, CSV import/export, and per-domain notification settings. No subscription, no recurring fees.

What data does the app collect?

None. There are no analytics, no tracking SDKs, no accounts, and no sign-ups. The only network requests are WHOIS/RDAP lookups and SSL checks to public servers. One optional, user-initiated feature lets you send a public WHOIS record to the developer to improve parsing — no personal data is included.

How do notifications work?

Notifications are scheduled locally via iOS. They fire even if the app is not running. Every time you open the app, it refreshes expiry dates and reschedules all reminders. Default alerts at 30, 14, and 7 days before expiry. You can customize intervals per domain.

Does it check SSL certificates?

Yes. Domain Command connects to your domain's server via HTTPS to inspect the TLS certificate chain. It extracts the issuer, validity dates, and status. SSL certificate expiry is monitored alongside domain expiry.

How many domains can I track?

The free tier tracks up to 3 domains. The one-time Pro unlock supports up to 64 domains, which matches the iOS local notification limit. More than enough for indie developers, small businesses, and freelancers managing client domains.

Does it work on Mac?

Yes. Domain Command is a native app for both iOS 26+ and macOS 26+. It uses SwiftUI with platform-appropriate UI on each device, and iCloud sync keeps your domain data in sync across iPhone and Mac.

Information

Developer Tomas Kafka
Category Utilities
Compatibility iOS 26+, macOS 26+
Price Free with In-App Purchase
In-App Purchase Unlock Pro — one-time
Languages English
Privacy Privacy Policy

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