IP LookupSearch geolocation and ASN for any IP
DNS Leak TestCheck if your DNS queries leak to your ISP
IPv6 Leak TestDetect IPv6 dual-stack leaks bypassing your VPN
WebRTC Leak TestCheck if WebRTC reveals your real IP
Geolocation Privacy TestCompare browser location exposure with IP-based geolocation
HTTP HeadersInspect your HTTP request headers
Forward DNSResolve domain names to IP addresses
Reverse DNSLook up hostnames from IP addresses
RDAP / WHOISDomain and IP registration lookup
Email SecurityAudit SPF, DKIM, DMARC, and mail transport records
Port ScannerScan common service ports on your current public IP
CT MonitorCertificate Transparency log search
Fingerprint LabBrowser fingerprinting demonstration
Bot DetectionAnti-bot measurement and tools
ASN ListExplore autonomous system information