Reverse IP Lookup Find domains hosted on an IP
Discover all domains hosted on a specific IP address. Identify shared hosting, find related infrastructure, and assess hosting reputation.
curl -d "email=you@example.com" https://ismalicious.com/api/keys/instant50 free requests/month · instant API key · no signup form
7.5M+
IPs Indexed
< 500 ms
Response Time
Daily
Updates
Key features.
Available signals and integration options.
Domain Discovery
Find all domains pointing to a specific IP address.
Shared Hosting Detection
Identify if an IP is used for shared hosting.
Infrastructure Mapping
Map relationships between domains and hosting providers.
Threat Context
See if other domains on the IP are flagged as malicious.
Historical Data
View domains that previously pointed to the IP.
Bulk Lookups
Check multiple IPs in a single API request.
Use cases.
Workflows to evaluate with your existing tools.
Threat Hunting
Find related malicious domains sharing infrastructure.
Hosting Assessment
Evaluate the reputation of a hosting provider.
Brand Protection
Find phishing sites hosted on the same IP as legitimate ones.
Investigation
Discover attacker infrastructure during incident response.
Frequently asked questions.
What is a reverse IP lookup?
How many domains can be on one IP?
Why is this useful for security?
How current is the data?
New to the term? Read the glossary definition.
Ready to get started?
Test the available signals in your workflow. Review the sources and limits before integrating.
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