Find all websites sharing the same IP address. Perfect for identifying competitor networks, monitoring server neighbors, or detecting suspicious activity.
Learn the technical details behind any IP including web server software, hosting provider, and data center location with our instant lookup tool.
Protect your online assets by identifying malicious neighbors, auditing shared hosting environments, and monitoring IP reputation changes.
FAQs
What is Reverse IP Lookup?
Reverse IP lookup is a technique to find all domains hosted on a specific IP address. Unlike standard IP lookup that shows location/organization, this reveals shared hosting relationships.
How does your tool work?
We query DNS records across multiple databases to identify domains pointing to the same IP. Results include active domains, with options to filter by registration date or TLD.
Why would I need this?
Common uses include: investigating suspicious activity, identifying competitors on shared hosting, SEO analysis of neighboring sites, or verifying server migrations.
How accurate are the results?
We detect ~95% of actively hosted domains. Some may be missed due to DNS caching, CDNs, or private name servers. Cloud-hosted IPs typically show the most complete results.
Can I lookup IPv6 addresses?
Yes, our tool supports both IPv4 and IPv6 reverse lookups. Note that IPv6 results may be limited due to less widespread adoption in shared hosting environments.
Why do some IPs return no results?
This usually indicates: 1) A dedicated IP with only one domain, 2) Firewall restrictions, or 3) The IP belongs to a CDN/service like Cloudflare that obscures underlying domains.
How many domains can one IP host?
Shared hosting IPs often host 100-500+ domains. Enterprise servers may host thousands. Our tool shows the first 250 by default, with options to load more.
Can I export the domain list?
Yes, all results can be exported as CSV/PDF. No registration required - this is completely free like all our tools.
Is this the same as reverse DNS?
No. Reverse DNS (rDNS) maps IPs to hostnames. Our tool goes further by showing all domains resolving to the IP, not just the PTR record.
How often is the data updated?
We refresh our DNS datasets daily, but some results may reflect cached records. For critical investigations, cross-check with current DNS lookups.