Robtex - Network Intelligence Tools

Comprehensive DNS, IP, and network analysis tools. Explore the relationships between domains, IP addresses, and autonomous systems with passive DNS data going back years.

Available Tools

IP Lookup

Get detailed information about any IP address: geolocation, network ownership, ASN, reverse DNS records, and related infrastructure. See all domains hosted on an IP and trace network relationships.

Domain Lookup

Analyze a domain's complete DNS configuration. See all record types, nameservers, mail servers, and hosting relationships. Track historical DNS changes over time.

ASN Lookup

Query Autonomous System information including announced prefixes, network relationships, and routing data. Essential for understanding internet topology and peering relationships.

Reverse DNS

Find all hostnames pointing to an IP address. Discover shared hosting relationships, identify associated domains, and map infrastructure connections.

WHOIS

Look up domain registration data including registrar, creation date, expiration, and registrant information. Verify domain ownership and check registration history.

The Robtex Difference

Relationship mapping - We don't just show DNS records. We map the connections between domains, IPs, nameservers, and networks to reveal infrastructure patterns invisible in simple lookups.

Passive DNS history - Our database of observed DNS resolutions spans years. Track how domains have changed over time - previous IPs, old nameservers, historical hosting.

Cross-referenced data - Query an IP and see all domains. Query a domain and see all IPs. Follow the links to understand the full picture.

Common Use Cases

Security Investigation

• Trace suspicious domains to their hosting infrastructure
• Identify related domains sharing the same IP or nameserver
• Research threat actors through infrastructure patterns
• Check domain age and registration history

Network Administration

• Audit your own DNS configuration
• Verify reverse DNS is properly configured
• Find abuse contacts for network operators
• Monitor for unauthorized DNS changes

Competitive Research

• Discover what hosting providers competitors use
• Identify CDN and security service configurations
• Map web infrastructure through DNS analysis

Try It Now

Enter any domain or IP in the search box above, or explore these examples:

• 8.8.8.8 - Google's public DNS server
• 1.1.1.1 - Cloudflare's DNS resolver
• AS13335 - Cloudflare's autonomous system
• AS15169 - Google's autonomous system

Related Tools

Robtex is the flagship of our network intelligence suite:

• DNS Ninja - Quick, focused DNS lookups
• RBLS - IP reputation and blocklist checking
• RTSAK - BGP routing analysis
• HashXP - Bitcoin and Lightning Network explorer

Last modified: 2025-12-28