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.
No credit card required · Free API key
risk score · threat categories · sources · age · confidence — in one request
7.5M+
IPs Indexed
Indexed
Domain Mappings
< 0 ms
Response Time
Daily
Updates
Key features. Everything you need to protect your infrastructure and users.
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. How security teams use this tool.
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?
Ready to get started?
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No credit card required · Free API key