Bulk DNS lookups, on your desktop.
DNS Explorer is a powerful domain DNS record lookup tool tailored for efficiency and large-scale operations. It facilitates unlimited bulk domain lookups, providing comprehensive DNS record data for domain management and security analysis. DNS Explorer is built to provide fast enterprise volume DNS lookups and can perform 100,000's of lookups in a single batch scanning process. Learn more →
14-day free trial · $30/month or $300/year · Windows 11 and macOS
Latest Updates • Release Notes • Download Center • Instructions
Built for enterprise-volume lookups
- Unlimited Bulk Domain Lookups
- Advanced DKIM Search
- Reverse DNS Search
- Organized report output to .csv and .pdf
- Data Compare, Merge, and Reporting Tools
Native application for Windows 11 and macOS. Nine analysis utilities, one download.
Get DNS Explorer
Every plan includes Unlimited DNS Bulk Lookups — full feature access on all tiers.
Free Trial
Start your 14-day trial today and use all features of DNS Explorer.
- ✓Unlimited DNS bulk lookups
- ✓All nine analysis utilities
- ✓Following trial period, monthly subscription $30 per month
- ✓Cancel anytime
Monthly
DNS Explorer Monthly Subscription, $30 per month
- ✓Unlimited DNS bulk lookups
- ✓DKIM search, reverse DNS, subdomain discovery
- ✓CSV and PDF reports, compare and merge tools
- ✓Cancel anytime
Annual
- ✓Unlimited DNS bulk lookups
- ✓DNS Explorer Annual Subscription, $300 per year
- ✓Everything in Monthly
- ✓Cancel anytime
Already a subscriber? Manage your subscription
Professional DNS Intelligence Platform
DNS Explorer is a powerful, professional-grade desktop application designed for IT professionals, cybersecurity analysts, domain administrators, managed service providers, and anyone who needs deep visibility into the Domain Name System. Built natively for both Windows and macOS, DNS Explorer provides specialized utilities that cover the full spectrum of DNS analysis—from rapid bulk domain scanning and advanced DKIM discovery to subdomain enumeration, reverse DNS lookups, comprehensive PDF report generation, email infrastructure analysis, persistent domain monitoring, CSV data merging, and multi-file CSV combination. Whether you're auditing a single domain or analyzing hundreds of thousands, DNS Explorer delivers structured, exportable results with real-time progress tracking.
A Domain Explorer for DNS Intelligence at Scale
Think of it as a domain explorer and DNS analyzer in one: start from a list of domains — an acquisition target's portfolio, a vendor inventory, a competitor set — and explore what each one actually runs. The scanner surfaces mail providers, security vendors, hosting platforms, and authentication posture from raw DNS data, then lets you filter, compare, and export the findings. It replaces hours of one-off lookups with a single explorable dataset.
DNS Analysis Utilities
Domain QuickScan
The fastest way to perform bulk DNS lookups. Retrieves MX, TXT, DMARC, SPF, A, and NS records. Process up to 1,000,000 domains per scan with automatic validation and deduplication. Results export to timestamped CSV files.
Advanced Lookup
Deep DNS analysis with comprehensive DKIM selector discovery and IP geolocation enrichment. Includes BIMI, SRV, and SOA records. Toggle DKIM search and location enrichment options to balance between speed and depth of analysis.
Subdomain Lookup
Powerful subdomain discovery and enumeration using multiple techniques including zone transfers, certificate transparency logs, MX/NS enumeration, brute force pattern discovery, DNS record enumeration, reverse DNS sweeps, CNAME chain following, and server discovery probing. Choose between Quick Search for faster results or Deep Search for comprehensive coverage.
Reverse DNS Lookup
Comprehensive reverse analysis for IP addresses including PTR resolution, WHOIS lookups, geolocation, DNSSEC validation, and port scanning. Supports both IPv4 and IPv6. Automatically cleans SPF format entries and handles CIDR notation. Choose Primary Mode (25 critical ports) or Comprehensive Mode (121 ports).
Domain Profile Report
Generate professional, presentation-ready PDF reports for client deliverables, security audits, and compliance documentation. Complete DNS record analysis with custom branding, company logo support, and reporter information saved between sessions. Perfect for MSPs and security consultants.
Email Explorer
Purpose-built for email security analysis. Input email addresses and automatically analyze the DNS infrastructure of sender domains. Automatic domain extraction, validation, normalization, and deduplication.
My Domains
Persistent domain management workspace for ongoing monitoring and regular DNS audits. Saves your domain list and custom DKIM selectors between sessions. Perfect for managing your own domain portfolio.
Match/Compare/Merge
CSV data utility that merges two CSV files based on a shared column. Match on Domain, Email Address, Message ID, IP Address, or any custom column. Includes merge status tracking.
Report .CSV Combinator
Consolidate multiple CSV files from a folder into one unified output. Handles BOM characters, various text encodings, and minor column structure differences automatically.
Perfect For Your Industry
Cyber Security Teams
Perform reconnaissance with subdomain enumeration. Analyze email security posture with DMARC/SPF/DKIM checks. Generate security audit reports for clients. Investigate suspicious domains and IP addresses.
IT Professionals & System Administrators
Audit thousands of domains in your infrastructure. Monitor DNS configurations across your organization. Quickly identify misconfigurations before they cause outages.
Managed Service Providers (MSPs)
Create professional client reports with custom branding. Monitor client domains with persistent domain lists. Deliver comprehensive DNS audits as a value-added service. Export results for client documentation and compliance.
Business Intelligence
Uncover competitive technology insights through DNS reconnaissance. Identify what platforms, services, and security technologies competitors are deploying. Map email infrastructure and hosting providers across market segments. Build comprehensive profiles of target companies' technical architecture for sales intelligence, market research, and competitive analysis.
Email Security Teams
Analyze sender domain infrastructure at scale. Verify email authentication policies (SPF, DKIM, DMARC). Identify email gateway configurations. Investigate phishing and spoofing attempts.
Domain Portfolio Managers
Track DNS configuration across large domain portfolios. Save and re-scan domain lists regularly. Ensure consistent DNS policies across all properties. Quickly identify which domains need attention.
Start Your Free Trial
Execute bulk nslookup operations at enterprise scale with powerful DNS lookup tools built for cyber security professionals, IT managers, sales intelligence teams, and domain portfolio managers.
Experience DNS Explorer with a 14-day free trial. No credit card required. Cancel anytime. Continue with $30/month or save $60/year at $300/year.
Latest Updates • Download Center • Instructions • Already a subscriber? Manage your subscription
