Domainlert: Domain Manager

Domainlert is a domain lookup, domain expiry monitor, DNS checker, SSL/TLS certificate checker, and domain portfolio manager for Android.

Use Domainlert to check registration details with modern RDAP lookup, monitor domains, inspect DNS and DNSSEC, verify TLS certificates, check website availability, discover domain names, and receive alerts when important domain information changes.

DOMAIN LOOKUP & RDAP
Check a domain, subdomain, or URL and view:
• Registered or Possibly Available status
• Creation, update, and expiration dates
• Days remaining before expiry
• Registrar and registrar website
• Nameservers
• EPP status and domain lifecycle
• Transfer-lock status
• DNSSEC information

Domainlert uses RDAP-first lookup, the modern standards-based alternative to traditional WHOIS lookup for supported domains.

DOMAIN PORTFOLIO
Keep domains you own or manage in one portfolio.
• Add verified registered domains
• Search, filter, and sort domains
• Organize with Groups, Clients, and Tags
• View health, expiry, website status, and last check
• See domains that need attention first

DOMAIN HEALTH SCORE
Get a 100-point Website & Email Readiness score based on domain expiry, transfer lock, DNS readiness, DNSSEC, and TLS security, with actionable issues.

DNS CHECKER & EMAIL READINESS
Inspect DNS records with DNS-over-HTTPS:
• A, AAAA, CNAME
• MX, NS, TXT
• CAA, SOA, DS
• SPF and DMARC

Domainlert also checks DNSSEC status and authoritative DNS responsiveness to help identify common website and email configuration issues.

SSL / TLS CERTIFICATE CHECKER
Inspect the TLS/SSL certificate of a domain, hostname, or IP address:
• Certificate trust and hostname matching
• Issuer, validity, and expiry
• Wildcard handling
• Self-signed or incomplete-chain detection
• SHA-256 certificate fingerprint
• TLS expiry reminders

WEBSITE HEALTH CHECK
Run a website status check with HTTPS-first connection, safe HTTP fallback, redirects, HTTP status, response latency, and online/offline status.

DOMAIN MONITORING & CHANGE ALERTS
Enable monitoring per domain and receive notifications for:
• Domain expiry and renewal
• Registrar changes
• Transfer-lock or status changes
• Nameserver and MX changes
• DNSSEC changes
• TLS trust, certificate, fingerprint, renewal, or expiry changes

Monitoring adjusts its schedule based on how close a domain is to expiration.

DOMAIN WISHLIST & DISCOVERY
Save domain ideas to your Wishlist and monitor availability.

Domain Discovery lets you scan selected TLDs for a keyword or domain idea, view progressive results, retry checks, and try similar-name suggestions. Possibly Available domains can be added to your Wishlist.

IMPORT, EXPORT & BACKUP
Manage larger portfolios with:
• Plain domain-list and CSV import
• Domainlert JSON restore
• CSV portfolio export
• Versioned JSON backup
• Preview and conflict handling

DOMAIN REPORTS
Create and share domain reports as plain text or branded PDF with registration details, expiry, Health Score, DNSSEC, TLS, website status, and optional DNS or change information.

HOME-SCREEN WIDGET
See total domains, Needs Attention count, expiry/health summary, and urgent domains from your Android home screen.

HISTORY
Review recent domain lookup and TLS check attempts, search results, reuse a query, or clear history.

WHO IS DOMAINLERT FOR?
Useful for:
• Website owners
• Developers
• System and network administrators
• Domain investors
• Agencies and IT teams
• Small businesses
• Anyone managing domains

No Domainlert account is required for core features.

Whether you need a domain checker, RDAP lookup, WHOIS alternative, domain expiry tracker, DNS lookup tool, DNSSEC checker, SSL certificate checker, TLS monitor, website health checker, domain availability checker, or domain portfolio manager, Domainlert keeps important domain information organized in one place.

Check domains. Monitor expiry. Inspect DNS and TLS. Track changes. Manage your domain portfolio with Domainlert.