Domain Check

Professional domain lookup for WHOIS, DNS, SSL, email security, blacklist, expiry, batch checks, and portfolio monitoring.

Professional Domain Intelligence

Domain Check is a focused lookup and monitoring tool for people who work with domains every day. Check availability, ownership signals, DNS, SSL, email security, blacklist status, expiry risk, and portfolio history from one clean iPhone and iPad app.

Use it for domain research, brand protection, client audits, acquisition checks, technical reviews, expiry tracking, and ongoing watchlist monitoring.

Key Features

• Single domain lookup for fast checks
• Batch checking for pasted, imported, or saved domain lists
• WHOIS availability status: Available, Registered, or Unclear
• Confidence level and human-readable result explanation
• Registrar and expiry details when available
• WHOIS privacy and redaction signal detection
• DNS-over-HTTPS lookup with Cloudflare to Google fallback
• DNS records for A, AAAA, MX, NS, TXT, and CNAME
• Nameserver change detection between saved checks
• SSL validation using the system HTTPS trust check
• Email security review for MX, SPF, DMARC, DMARC policy, and DKIM hints
• DNSBL blacklist checks for discovered IPv4 records
• Domain health score, risk labels, freshness warnings, and expiry badges
• Domain suggestions, typo variants, and brand-protection variants
• Saved watchlist for favorite and alerted domains
• Expiry dashboard for important domains
• Grouped batch history with expandable batch runs
• Searchable history with filters for status, saved domains, expiry, alerts, blacklist, and SSL issues
• Compact or detailed history row density
• Multi-select history actions for compare, export, favorite, tag, recheck, and delete
• Side-by-side domain comparison with highlighted technical values
• Per-domain notes and tags
• Saved reusable batch lists with searchable picker
• Batch templates for startup names, brand protection, and client-domain lists
• Batch pause, resume, stop, progress overlay, and rate-limit warning
• Native PDF export for single results and full history
• CSV export for history, notes, and tags
• CSV and text import for domain lists
• Copy actions for domain, summary, WHOIS, DNS records, and key result values
• Configurable preferred registrar URL
• Local expiry reminders and availability alerts
• iCloud key-value mirroring when available
• App Shortcut and widget target support
• Clean cyber-tech dark interface built for iPhone and iPad

Domain Check keeps domain intelligence practical: quick enough for one lookup, structured enough for professional batch workflows.