Reverse IP Lookup

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Shared hosting means a single IP address often hosts dozens, sometimes hundreds, of unrelated websites. A reverse IP lookup flips the usual direction of a domain search: instead of starting with a name and finding its server, you start with an IP address and find every domain sitting on it.

That's useful in more situations than it first sounds. If you're vetting a hosting provider, want to know what else shares your server before you commit, or you're trying to work out who's really behind an anonymous-looking website, this is the tool that answers it.

Shared Hosting Detection
Shared Hosting Detection

Identify if a website is hosted on a shared IP address by discovering other domain names resolving to the exact same server.

Security Research
Security Research

Uncover potential vulnerabilities by finding out what other applications or websites are co-hosted on a target IP address.

Corporate Assets
Corporate Asset Discovery

Find hidden domains and projects owned by the same organization by scanning the IP addresses attached to their known domains.

 

What you can use this for

  • Checking what else is hosted on the same server before signing up with a provider
  • Investigating a suspicious or anonymous website by seeing its neighbours
  • Auditing your own infrastructure to confirm what's actually running on your IP
  • Identifying whether a domain sits on shared or dedicated hosting

Pair It With the Right Follow-Up

A reverse IP lookup only tells you who else shares a server, not who owns any of them. If a domain on that list catches your eye, run a WHOIS Lookup to find out who actually registered it. And if what you're really after is where a server physically sits rather than who else lives on it, that's a different question, Domain Location answers that one instead.

FAQS

How does a reverse IP lookup work?

It queries hosting and DNS records to find every domain currently pointing to a given IP address, then returns that list.

Can this tell me who owns a website?

Not directly. It shows you what's hosted alongside a domain, not ownership. Pair it with a WHOIS Lookup for ownership details.

Why do so many domains share one IP?

Shared hosting and CDNs often put many unrelated sites on one IP to cut costs. A long neighbour list usually isn't a red flag."

Is this the same as a Domain Location lookup?

No. Domain Location tells you where a server is geographically. Reverse IP Lookup tells you what else is hosted on it.