Abuse IP DB
AbuseIPDB provides IP reputation data and community abuse reports for identifying malicious hosts in network and threat investigations.
Censys Search
Internet-wide search interface for hosts and certificates with large-scale host, service, and virtual host coverage plus API access.
Cloudflare IP Finder
Utilize misconfigured DNS and old database records to find hidden IP's behind the CloudFlare network
Criminal IP
Criminal IP delivers AI-powered IP threat intelligence, attack surface data, and fraud detection for cyber threat investigations.
DNS dumpster
Free domain research tool to discover hosts related to a domain. Find visible hosts from the attackers perspective for Red and Blue Teams.
Domain/IP lookup
InfoByIP provides bulk IP and domain lookups returning geolocation, ASN, hostname, and WHOIS data for multiple targets simultaneously.
Greynoise
GreyNoise collects internet-wide scan and attack data to distinguish targeted threats from opportunistic background noise in OSINT.
IP Address
IPAddress.my provides IP geolocation, ASN lookup, reverse DNS, and WHOIS data for any IPv4 or IPv6 address in a straightforward interface.
IP Chicken
Instantly see what is my IP—your public IP address, the one others see from this Internet connection. Free IP Chicken lookup.
IP Fingerprints
IP Fingerprints identifies IP geolocation, ISP, proxy status, and network characteristics for OSINT investigations and fraud research.