Domain & Network · Free tool
Reverse IP Domain Checker
A reverse IP lookup takes an IP address and returns the list of domain names resolving to it. On shared hosting, one IP may serve hundreds of domains. On dedicated hosting, you might find only one. This is useful for competitive research, server due diligence, and identifying whether a bad actor is on your same server.
SEO, GEO & AEO: why this checklist matters
Who should use this
SEOs doing competitive research, hosting decision makers, and developers investigating server configurations.
Rankings, AI answers, and citations
IP-level analysis is a minor factor in Google's overall quality assessment. The impact of shared IPs on rankings is debated and likely minimal for most sites. This tool is primarily useful for research and due diligence rather than direct ranking optimization.
What to verify before you ship
- Check a new hosting server before migrating if IP reputation matters to you
- Look for known spam or malware domains on the same IP before sharing a server
- Dedicated IPs are worth the cost for high-authority sites where reputation isolation matters
- Use this alongside DNS records to get a full picture of server configuration
What you can expect next
Use this workflow on drafts and live URLs. For continuous monitoring across Google and AI surfaces, pair results with Linkstonic SEO audit, AI tracking, and TrueTrace.
Frequently asked questions
Written for search snippets, People Also Ask-style surfaces, and answer engines that quote short Q&A units.
Does sharing an IP with bad sites hurt my rankings?
Google's official position is that shared IPs don't cause guilt by association. However, extremely problematic server neighborhoods (known spam farms) may create other issues. Dedicated IPs are cleaner for high-stakes domains.
How many sites on one IP is too many?
Shared hosting commonly puts hundreds of domains on one IP. This is normal and not inherently problematic. Problems arise when the IP is on spam blocklists or hosts known malware distributors.
How do I check if an IP is on a blocklist?
Use a blacklist lookup tool after finding the IP through a reverse IP check. Many email and web reputation databases are searchable by IP address.
Can competitors see which IP my site is on?
Yes. IP addresses are publicly resolvable from domain names. This is not sensitive information, but it can reveal your hosting provider and, on shared hosting, your site's neighborhood.